David E. Sanger and Julian E. Barnes reporting via the New York Times: In the closing days of 2015, the lights went out across a swath of Ukraine as Russian hackers remotely took over an electric utility's control center and flipped off one power station after another, while the company's operators stared at their screens helplessly. The next year, the same thing happened, this time around Kyiv, the capital. Now the United States and Britain have quietly dispatched cyberwarfare experts to Ukraine in hopes of better preparing the country to confront what they think may be the next move by President Vladimir V. Putin of Russia as he again menaces the former Soviet republic: Not an invasion with the 175,000 troops he is massing on the border, but cyberattacks that take down the electric grid, the banking system, and other critical components of Ukraine's economy and government. Russia's goal, according to American intelligence assessments, would be to make Ukraine's president, Volodymyr Zelensky, look inept and defenseless -- and perhaps provide an excuse for an invasion.

The Russian cyberactivity was discussed by roughly a dozen officials, who requested anonymity because the information was derived from classified intelligence and sensitive discussions about how to mitigate the Russian threat. Those conversations have focused on whether Mr. Putin thinks that a crippling of Ukraine's infrastructure could be his best hope of achieving his primary goal: ousting the Ukrainian government and replacing it with a puppet leader. The calculus, one senior intelligence official said, would be that such an attack would not require him to occupy the country -- or suffer as many of the sanctions that would almost certainly follow a physical invasion.

Already Mr. Putin has been working to build support domestically and in Africa and South and Central America. Russian-led information campaigns have been focused on denigrating the Ukrainian government and accusing its leader of creating a humanitarian crisis in the country's east, where Ukrainian government forces have been battling Russia-led separatists for years, according to U.S. and allied officials. American officials declined to describe the cyberteams that have been inserted into Ukraine. In a statement, the Biden administration said only that "we have long supported Ukraine's efforts to shore up cyberdefenses and increase its cyberresiliency." A spokeswoman for the British government said the assistance that Britain and its allies were providing was defensive in nature. While neither government would provide details, officials said the United States was considering a larger deployment, including resources from U.S. Cyber Command. But it is unclear how much good a bigger team could do beyond demonstrating support.

Cloudflare blog: Let's start with our Top Domains Ranking and 2021 brought us a very interesting duel for the Number 1 spot in our global ranking. Google.com (which includes Maps, Translate, Photos, Flights, Books, and News, among others) ended 2020 as the undefeated leader in our ranking -- from September to December of last year it was always on top. Back then TikTok.com was only ranked #7 or #8.

Top 10 -- Most popular domains (late) 2021

1 TikTok.com
2 Google.com
3 Facebook.com
4 Microsoft.com
5 Apple.com
6 Amazon.com
7 Netflix.com
8 YouTube.com
9 Twitter.com
10 WhatsApp.com

Top 10 -- Most popular domains (late) 2020

1 Google.com
2 Facebook.com
3 Microsoft.com
4 Apple.com
5 Netflix.com*
6 Amazon.com
7 TikTok.com
8 YouTube.com
9 Instagram.com *
10 Twitter.com

2021 told a different story. It was on February 17, 2021, that TikTok got the top spot for a day. Back in March, TikTok got a few more days and also in May, but it was after August 10, 2021, that TikTok took the lead on most days. There were some days when Google was #1, but October and November were mostly TikTok's days, including on Thanksgiving (November 25) and Black Friday (November 26).

The first text message ever sent, reading "Merry Christmas," was sold on Tuesday for 107,000 euros ($121,000) as a 'Non-Fungible Token' at a Paris auction house. From a report: The text, which was sent on Dec. 3, 1992, was put up for auction by the British telecoms company Vodafone. Vodafone engineer Neil Papworth sent the SMS from his computer to a manager in the United Kingdom, who received it on his 2-kg (4 lb) "Orbitel" telephone -- similar to a desk phone but cordless and with a handle.

The number of people using Android Apps on Chromebooks grew 50 percent year over year, according to a blog post from Chrome OS product managers Fahd Imtiaz and Sanj Nathwani this week. The execs cited internal Google data recorded from 2020-2021. From a report: In 2021, as some smartphones moved to Android 12, Google worked on updating Chromebooks to support Android 11, while attempting to boost security and performance by bringing Android on Chrome OS to a virtual machine, rather than a container. The company also improved its general usability, using runtime improvements to make the resizing and scaling of Android apps on Chromebooks work better, as well as app rendering. As the developer-focused blog noted, Chromebooks on Chrome OS 93 or newer (the latest is Chrome OS 96) automatically run Android apps made for mobile devices in a window that's set to stay in a "phone or tablet orientation." And, yes, you can turn this feature off. Additionally, Imtiaz and Nathwani pointed to Android's Nearby Share feature coming to Chrome 96 for Android 11 and Android 9 apps as another way to try to get developers excited about making their apps fit devices with larger screens.

Fresh off relinquishing the chief executive reins of Twitter, Bitcoin enthusiast Jack Dorsey has taken to the service he co-founded to voice his displeasure with so-called Web3 technology and the involvement of venture capital firms like Andreessen Horowitz. From a report: Web3, the still hazy term for blockchain-based, decentralized systems and tech that are meant to replace the internet as we know it, has garnered much attention and funding this year, with Andreessen Horowitz being among its loudest cheerleaders. Trading of non-fungible tokens, or NFTs, on the Ethereum and Solana blockchains has been the most visible manifestation, with many companies now investing in the development of decentralized apps as well as games for those platforms.

"You don't own 'web3'," tweeted Dorsey. "The VCs and their LPs do. It will never escape their incentives." The post drew more than 16,000 likes and thousands of retweets. Many pushed back with comments like "highly disagree" and "dead wrong," though many others chimed in with support. Tesla chief Elon Musk got in on the discussion by asking if anyone has seen Web3, to which Dorsey replied "it's somewhere between a and z," hinting that it's held under the control of the VC firm founded by Marc Andreessen and Ben Horowitz, commonly contracted to a16z.

New York-based firm Pliant Energy Systems is building a marine system reminiscent of the cuttlefish with its rippling underwater motion, a report from The Economist reveals. The company's biomimetic machine, called Velox, is based on the principle that propellers are nowhere near as efficient as the fins of sea creatures that are prevalent in nature. Interesting Engineering reports: Unlike propellers, fins and flippers can extend around a sea creature, meaning more propulsion without the need for a large protruding propeller that could get caught or damaged by hitting the seabed. Fins are also flexible, meaning that if they do come in contact with any other object in the sea, they are less likely to get damaged. In an interview with The Economist, an ex-marine biologist and founder of Pliant Energy Systems, Benjamin Pietro Filardo, explained how he is designing submersible machines that are propelled using flexible fin-like materials. He said Velox will produce approximately three times as much thrust per unit energy as the average propeller of a small boat. The system can travel underwater and even come out onto land, using its fins almost like robotic legs. The video below shows Velox skating on ice and swimming in a pool.

Filardo showed his new design to America's Office of Naval Research, leading them to commission a new iteration, called C-Ray, that will be faster and lighter than Velox. C-Ray also won't be tethered, unlike Velox, which is currently controlled via a cable. Autonomous swarms of the machine could eventually be used for missions such as undersea patrols, mine removal, and deepsea exploration and monitoring. [...] Filardo said the system has great potential for scalability, giving the blue whale as an example of a massive sea mammal that uses fins for propulsion. Impressively, he also revealed that he is also working on a concept that would allow his system to moor itself, and then use the undulations of its fins, thanks to the sea current, to recharge. A lot of testing is still needed, but if Filardo's system delivers on its promise, we might eventually see giant mechanical sea beasts silently gliding through the oceans.

A Philadelphia mother has given birth to what is believed to be the world's first Tesla baby: an infant delivered in the front seat of an electric smart car while it was driving on autopilot. From a report: The remarkable delivery, reported by the Philadelphia Inquirer, took place in September while Yiran Sherry, 33, and her husband Keating Sherry, 34, were taking their three-year-old son Rafa to pre-school. Yiran Sherry's waters broke while the family was stuck in traffic. With contractions increasing rapidly and traffic barely moving, the couple realized they were not going to make it in time.

Keating Sherry placed the vehicle on autopilot after setting the navigation system to the hospital, 20 minutes away in the western suburb of Paoli. He said he laid one hand gently on the car's steering wheel as he attended to his wife. "She was squeezing my hand to the point where I thought she was going to shatter it," Keating Sherry told the Inquirer. "I was [saying] 'Yiran, OK, focus on your breathing.' That was advice to myself, as well. My adrenaline was pumping." Yiran Sherry said the decision over whether to try to wait to give birth until they reached the hospital was an agonising one. However, she said, she kept glancing at their estimated arrival time and saw it was barely moving.

Before Google Wifi was announced alongside the original Pixel phone, Google a year earlier released OnHub-branded routers from Asus and TP-Link. In late 2022, Google will end support for OnHub routers that will be seven years old at that time. 9to5Google reports: At six years old, currently, Google said "a lot has changed" in the router landscape, and that it will end support for them on December 19, 2022. This is according to emails that customers (via Droid-Life) have been receiving and a new support document. Until that date, "your OnHub router will continue to work as normal," but without security updates for new software features. The last combined OnHub and Google Wifi update came in October of 2019, while Google and Nest Wifi have had several OTAs since then. That said, a year later, the Google Home app added support for managing OnHub hardware ahead of the Google Wifi companion client getting deprecated.

Google recommends you "upgrade to a new Wi-Fi setup today" and emailed a 40% off Nest Wifi offer to existing OnHub router users that will be available until March 31, 2022. After December 19 next year, the OnHub router will continue to "provide a Wi-Fi signal" but no longer be manageable through the Google Home app, which is the downside of routers that are entirely managed via the cloud/companion app and do not offer local controls. While OnHub routers will continue to work and not disrupt existing networks, Google's decision to remove the ability to change basic settings is quite aggressive. Hopefully, the 2016 Google Wifi will see a longer support period.

Despite the European Union's highest court twice declaring that the United States does not offer sufficient protection for Europeans' data from American national security agencies, the social media giant's lawyers continue to disagree, according to internal documents seen by POLITICO. Their conclusion that the U.S. is safe for EU data is part of Facebook's legal argument for it to be able to continue shipping data across the Atlantic. From the report: In July 2020, the Court of Justice of the European Union (CJEU) struck down a U.S.-EU data transfer instrument called Privacy Shield. The court concluded Washington did not offer adequate protection for EU data shipped overseas because U.S. surveillance law was too intrusive for European standards. In the same landmark ruling, the Luxembourg-based court upheld the legality of another instrument used to export data out of Europe called Standard Contractual Clauses (SCCs). But it cast doubt on whether these complex legal instruments could be used to shuttle data to countries where EU standards cannot be met, including the U.S. The CJEU reached a similar conclusion in 2015, striking down the predecessor agreement to Privacy Shield because of U.S. surveillance law and practices. In both rulings, Europe's top judges categorically stated Washington did not have sufficiently high privacy standards. Still, Facebook -- the company at the heart of both cases -- thinks it shouldn't follow the court's reasoning.

The company's lawyers argue in the documents that the EU court ruling "should not be relied on" for the social media company's own assessment of data transfers to the U.S., because the judges' findings relate to Privacy Shield data pact, and not the Standard Contractual Clauses which Facebook uses to transfer data to the U.S. "The assessment of U.S. law (and practice) under Article 45 GDPR is materially different to the assessment of law and practice required under Article 46 GDPR," the document reads. That refers to the two different types of legal data transfer instruments under the EU's General Data Protection Regulation and indicates that assessment under SCCs is different to assessment under Privacy Shield. The company also says that changes to U.S. law and practices since the July 2020 ruling should be taken into account. As an example, it cites the U.S. Federal Trade Commission, a watchdog, "carrying out its role as a data protection agency with unprecedented force and vigour." Those arguments have been central to Washington's pitch during ongoing transatlantic negotiations over a new EU-U.S. data agreement. "Though companies have to take the EU court ruling into account when making their own assessments of third party country regimes, they can, in theory, diverge from the court's findings if they believe it is justified in a particular situation," notes Politico. "This means that companies like Facebook can, in theory, continue to ship data out of Europe if they can prove its sufficiently protected."

Google's open-source team said they scanned Maven Central, today's largest Java package repository, and found that 35,863 Java packages use vulnerable versions of the Apache Log4j library. From a report: This includes Java packages that use Log4j versions vulnerable to the original Log4Shell exploit (CVE-2021-44228) and a second remote code execution bug discovered in the Log4Shell patch (CVE-2021-45046). James Wetter and Nicky Ringland, members of the Google Open Source Insights Team, said in a report today that typically when a major Java security flaw is found, it typically tends to affect only 2% of the Maven Central index. However, the 35,000 Java packages vulnerable to Log4Shell account to roughly 8% of the Maven Central total of ~440,000, a percentage the two described using just one word -- "enormous." But since the vulnerability was disclosed last week, Wetter and Ringland said the community has responded positively and has already fixed 4,620 of the 35,863 packages they initially found vulnerable. This number accounts to 13% of all the vulnerable packages.

A group of Meta shareholders, along with the Campaign for Accountability, has submitted a resolution calling for an independent evaluation of the board's ability to oversee public safety on Facebook's platforms, Axios has learned. From the report: Facebook's parent company is facing pressure on multiple fronts from regulators, legislators and former employees -- and now investors. A letter sent earlier this month to Meta's corporate secretary, a copy of which was seen by Axios, says that, "Shareholders request the board commission an independent assessment of the Audit and Risk Oversight Committee's capacities and performance in overseeing company risks to public safety and the public interest and in supporting strategic risk oversight on these issues by the full board."

The letter is being submitted by the Harrington Associates and Park Foundation, both Facebook shareholders, in conjunction with the Campaign for Accountability. It aims to be included in Meta's annual proxy and submitted to a vote of shareholders. Other shareholders are also pushing similar resolutions this year, including an effort led by state investment officials in New York and Illinois. Facebook maintains it takes its responsibilities seriously, and told the Wall Street Journal that it has spent more than $5 billion this year on safety and security.

Glaciers across the Himalayas are melting at an extraordinary rate, with new research showing that the vast ice sheets there shrank 10 times faster in the past 40 years than during the previous seven centuries. From a report: Avalanches, flooding and other effects of the accelerating loss of ice imperil residents in India, Nepal and Bhutan and threaten to disrupt agriculture for hundreds of millions of people across South Asia, according to the researchers. And since water from melting glaciers contributes to sea-level rise, glacial ice loss in the Himalayas also adds to the threat of inundation and related problems faced by coastal communities around the world. "This part of the world is changing faster than perhaps anybody realized," said Jonathan Carrivick, a University of Leeds glaciologist and the co-author of a paper detailing the research published Monday in the journal Scientific Reports. "It's not just that the Himalayas are changing really fast, it's that they're changing ever faster."

Scientists have long observed ice loss from large glaciers in New Zealand, Greenland, Patagonia and other parts of the world. But ice loss in the Himalayas is especially rapid, the new study found. The researchers didn't pinpoint a reason but noted that regional climate factors, such as shifts in the South Asian monsoon, may play a role. The new finding comes as there is scientific consensus that ice loss from glaciers and polar ice sheets results from rising global temperatures caused by greenhouse-gas emissions from the burning of fossil fuels. Many peer-reviewed scientific studies have identified human activity as a cause of rising global temperatures. So did a report issued in August by the United Nations Intergovernmental Panel on Climate Change, which said "human influence is very likely the main driver of the global retreat of glaciers since the 1990s." For the new study, Dr. Carrivick and his colleagues scanned satellite photos of almost 15,000 glaciers in the region for signs of the large ridges of rock and debris that glaciers leave behind as they slowly grind their way through the valleys. Using the locations of these ancient glacial tracks, the scientists estimated the span of ice sheet coverage in previous centuries.

In the past three weeks, two major outages at Amazon's cloud computing service "led to widespread disruptions at other online services," reports NBC News. And they also cite June's "service configuration" issue at cloud CDN Fastly, which took countless sites offline including PayPal, Reddit and GitHub, and an AWS outage in November of 2020 which affected clients like Apple.

"The drumbeat of issues underscores that the internet, despite all it's capable of, is sometimes fragile...." The latest disruption occurred Wednesday, when customers of DoorDash, Hulu and other websites complained that they couldn't connect. The problems were traced to Amazon Web Services, or AWS, the most widely used cloud services company, which reported that outages in two of its 26 geographic regions were affecting services nationwide. A similar disruption took place Dec. 7, crippling video streams, halting internet-connected robot vacuum cleaners and even shutting down pet food dispensers in a series of reminders of how much life has moved online, especially during the coronavirus pandemic. AWS published an unusually detailed description of what went wrong, along with an apology.

The incidents helped to explode the illusion, reinforced by decades of steadily improving internet speed and reliability, that everyday consumers can rely on online services to be available without fail.... Experts in computer science and security said the interruptions don't really call into question the fundamental design of the internet, one of the founding ideas of which was that a distributed system can mostly continue functioning even if one piece goes down. But they said the problems are rooted in the uneven development of the internet, because certain data centers are more important than others; cloud businesses run by Amazon, Google and Microsoft concentrate more power; and corporate customers of cloud services don't always want to pay extra for backup systems and staff members.

Sean O'Brien, a lecturer in cybersecurity at Yale Law School, said the outages call into question the wisdom of relying so much on big data centers. " 'The cloud' has never been sustainable and is merely a euphemism for concentrated network resources controlled by a centralized entity," he said, adding that alternatives like peer-to-peer technology and edge computing may gain favor. He wrote after last week's outage that the big cloud providers amounted to a "feudal" system.

"There are many points of failure whose unavailability or suboptimal operation would affect the entire global experience of the internet," said Vahid Behzadan, an assistant professor of computer science at the University of New Haven... "The fact that we've had repeated outages in a short period of time is a cause for alarm," Behzadan said, noting that U.S. businesses have staked a lot on the assumption that cloud services are resilient.
NBC cites reports that some companies are now taking a look at using multicloud solutions. And these outages may encourage businesses to finally take the plunge, adds the CS professor from New Haven.

"The internet will not die any time soon. But whatever won't kill the internet makes it stronger."

Joe_Dragon shares a report from The Verge: An Amazon delivery driver in Illinois was told to keep delivering packages after she reported hearing tornado sirens, with the dispatcher saying that the sirens were "just a warning." According to a report by Bloomberg, which includes screenshots of the conversation, the driver was told that returning to the warehouse would be viewed as a route refusal, "which [would] ultimately end with you not having a job come tomorrow morning."

The conversation reportedly happened on Friday evening, around an hour and a half before a tornado hit an Amazon facility around 30 miles away from the driver. After being told twice to "just keep delivering," the driver was eventually instructed to shelter in place "for 15-20 minutes, then continue as normal." (The instructions to shelter in place were repeated several more times after.) The driver, expressing that a delivery van wouldn't provide much safety, said she wanted to return to base. ""If you decide to come back, that choice is yours.""

The dispatcher's response is harrowing: "If you decide to come back, that choice is yours. But I can tell you it won't be viewed as for your own safety. The safest practice is to stay exactly where you are." The dispatcher said drivers couldn't be recalled unless Amazon directed it and that she would lose her job if she returned. The tornado ended up touching down near a highway, throwing cars in the air, according to Bloomberg, though the driver involved in the text exchange is reported to be safe. Amazon told Bloomberg that the dispatcher "should have immediately directed the driver to seek shelter" when they reported hearing the sirens and said that "under no circumstance should the dispatcher have threatened the driver's employment." The company says it's investigating the incident.

Necklaces and accessories claiming to "protect" people from 5G mobile networks have been found to be radioactive. The BBC reports: The Dutch authority for nuclear safety and radiation protection (ANVS) issued a warning about ten products it found gave off harmful ionizing radiation. It urged people not to use the products, which could cause harm with long-term wear. [...] The products identified included an "Energy Armor" sleeping mask, bracelet and necklace. A bracelet for children, branded Magnetix Wellness, was also found to be emitting radiation.

"Don't wear it any more, put it away safely and wait for the return instructions," the ANVS said in a statement. "The sellers in the Netherlands known to the ANVS have been told that the sale is prohibited and must be stopped immediately, and that they must inform their customers about this." The ANVS has published a full list of the products it identified as radioactive on its website. Further reading: Worried About 5G's Health Effects? Don't Be

An anonymous reader quotes a report from NPR: The parent company of Facebook and Instagram has banned seven firms it says used its platforms to spy on some 50,000 unsuspecting targets, including human rights activists, government critics, celebrities, journalists and ordinary people in more than 100 countries. These "surveillance-for-hire" companies were linked to around 1,500 accounts on Facebook and Instagram that were used to collect information on people and try to trick them into handing over sensitive personal information so that the firms could install spyware on their devices, according to a report released on Thursday by Meta, formerly known as Facebook.

"Each of these actors rely on networks of fake accounts on our platforms that are used to deceive users and mislead them," Nathaniel Gleicher, Meta's head of security policy, told NPR. Some firms also used Meta's WhatsApp to infect targets' phones with malware. The surveillance was also carried out over other internet services, from email and text messages to Twitter and YouTube. The goal, Gleicher said, is to "spy on people or snoop on them without them knowing about it." Gleicher's team spent months investigating surveillance activity before taking action against the seven companies for violating Meta's community standards and terms of service. Four of the firms are based in Israel, and the other three in China, India, and North Macedonia.

They include Black Cube, an Israel-based intelligence group reportedly used by Harvey Weinstein to dig up dirt on his accusers and journalists. Meta said Black Cube created fake accounts posing as graduate students, human rights workers and film and TV producers and tried to set up phone calls and get email addresses for a wide range of targets, from Palestinian activists to people working in medicine, mining and nonprofit organizations to figures involved in Russia's tech, finance, real estate and media sectors. [...] Another Israeli firm called Bluehawk CI tried to trick government opponents in the United Arab Emirates by pretending to be reporters for Fox News and Italy's La Stampa, Meta said. Meta also took down accounts connected to "an unidentified entity in China" that, Meta says, made tools used by Chinese law enforcement to spy on minority groups in Xinjiang, Myanmar and Hong Kong. "Meta has banned the companies from its platforms, removed the accounts it linked to them, and sent them cease-and-desist warnings," adds NPR. "It is notifying around 50,000 people whom it believes were targeted, and shared its findings with security researchers, other tech companies and policymakers."

Google has announced a new policy for cloud storage service Drive, which will soon begin to restrict access to files deemed to be in violation of the company's policies. TechRadar reports: As explained in a new blog post, Google will take active steps to identify files hosted on its platform that are in breach of either its Terms of Service or abuse program policies. These files will be flagged to their owner and restricted automatically, which means they can no longer be shared with other people, and access will be withdrawn from everyone but the owner. "This will help ensure owners of Google Drive items are fully informed about the status of their content, while also helping to ensure users are protected from abusive content," the company explained.

According to Google, the motive behind the policy change is to shield against the abuse of its services. This broad catchall encompasses cybercriminal activity (like malware hosting, phishing etc.), hate speech, and content that might endanger children, but also sexually explicit material. "We need to curb abuses that threaten our ability to provide these services, and we ask that everyone abide by [our policies] to help us achieve this goal," states Google in its policy document. "After we are notified of a potential policy violation, we may review the content and take action, including restricting access to the content, removing the content, and limiting or terminating a user's access to Google products." Google goes on to say that it may make "exceptions based on artistic, educational, documentary or scientific considerations." As noted by TechRadar, "there is a system to request a review of a decision if someone feels a file has been restricted unfairly, but it's unclear how the process will be handled on Google's end and how long it might take."

Adobe shares plummeted 10% on Thursday after the software maker issued a revenue forecast for the fiscal first quarter that fell well shy of analysts' estimates. CNBC reports: The stock suffered its second-worst drop in the past decade, surpassed only by a 15% slide in mid-March of last year, when coronavirus panic rattled the markets. Adobe's three worst days of the year have come in December, pushing the stock down 16% for the month and putting it on pace for its steepest monthly decline since June 2010. Adobe said revenue in its fiscal first quarter, which goes through Feb. 2022, will be $4.23 billion, trailing analysts' predictions for revenue of $4.34 billion, according to Refinitiv. For the full year, Adobe expects sales of $17.9 billion, which is below analysts' average estimate for revenue of $18.16 billion.

In the fourth quarter, Adobe said revenue climbed 20% to $4.11 billion, which beat estimates, led by 21% growth in the company's digital media segment. However, inflation and concerns about interest rates have led investors to put 2021 behind them and focus more on the coming year. That's drawn them out of high-growth, high-multiple stocks and into sectors that are generally viewed as more resistant to inflationary pressures and rate hikes. [...] Adobe fell $64.24 to $566.09 at the close. The stock is down 19% from its 52-week high last month.

An anonymous reader quotes a report from The Verge: School districts across the United States are cancelling classes on Friday, December 17th due to reports of threats that are supposedly being made on TikTok. Districts in California, Texas, Minnesota, and Missouri have said they plan to close down Friday in response, according to the districts and local media reports. Elsewhere, districts have said they plan to have heightened police presence or have emailed parents to say they've been investigating the allegations. But so far, there's little evidence that the threats are credible -- or even exist. The districts and local police departments largely say they've heard about a trend referencing the possibility of shootings or bombings on December 17th, but it's not clear how many have seen a specific threat or a threat against their schools in particular.

A number of districts and law enforcement divisions say they've looked into it and don't view the threats as credible or even real. "Law enforcement agencies have investigated this threat and determined that it originated in Arizona and is not credible," Baltimore County Public Schools wrote on Twitter. "Currently, there have been no threats to any of the schools in Mexico, [Missouri]," wrote a Missouri school district. "There have been no local, credible threats," Ohio's Milford Exempted Village School District wrote to parents. In New Jersey, Governor Phil Murphy tweeted, "there are no known specific threats against New Jersey schools."

The reports of threats on TikTok may be self-perpetuating. Videos being posted to TikTok warn others that they should skip school on December 17th due to supposed threats of shootings or bombings, which seem to have prompted others to create similar videos. And now that schools are canceling classes in response to those supposed threats, a new wave of videos have popped up with additional warnings based on both the supposed claims and the actual, factual cancellations of some school classes. TikTok says it has not identified any videos making specific threats. "We have not found evidence of such threats originating or spreading via TikTok," the company wrote in a tweet Thursday afternoon. TikTok said it is working with law enforcement to look into the warnings with "utmost seriousness," nonetheless.

An anonymous reader shares a report: Journalists, activists, and human rights defenders face a constant battle to keep files safe from a growing set of digital threats and surveillance. But physical attacks can be challenging to defend against, whether an opportunist snatch-and-grab thief or an oppressive government kicking down someone's door. This week, a project called BusKill launched a custom USB magnetic breakaway cable that acts as a "dead man's switch," locking a computer if someone physically snatches it and severs the magnetic connectors. BusKill has been in the works for more than two years as a do-it-yourself project. Anyone with the hardware could compile the source code, but it only worked on Linux and components quickly sold out. After a crowdsourcing effort, the cable is now available to buy starting at $59 and has an accompanying app that works on macOS, Windows, and Linux, allowing the person using the cable to easily arm and disarm the cable with a touch of a button.