An anonymous reader writes "In a blog post, Comcast's Jason Livingood has announced that Comcast has signed all of its (5000+) domains in addition to having all of its customers using DNSSEC-validating resolvers. He adds, 'Now that nearly 20 million households in the U.S. are able to use DNSSEC, we feel it is an important time to urge major domain owners, especially commerce and banking-related sites, to begin signing their domain names.'"
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