25099964 story Four CAs Have Been Compromised Since June 87 Posted by Soulskill on Friday October 28, 2011 @04:08PM from the four-whole-californias-wow dept. Trailrunner7 writes "The EFF, through the use of its SSL Observatory, has taken a look at the data from certificate revocation lists for SSL certificates in recent months, and found that there were four separate CAs compromised in the last four months. The only widely known CA compromise since June is the attack on DigiNotar this summer that completely compromised that company's CA infrastructure and eventually led to it being shut down. All of the major browser vendors were forced to revoke their trust in the DigiNotar root certificates and the attacker who claimed credit for the attack said that he also had compromised several other CAs. There are apparently three other CAs that have discovered compromises since June, but have not made them public."