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September 12, 2011
The Summer PKI Collapsed
By Joe Purcell
"One day we will look at the summer of 2011 as the time when the public key infrastructure (PKI) collapsed," Mike Fratto writes. The Dutch Certificate Authority (CA), DigiNotar, issued at least 531 false certificates for domains from Google to Facebook. The response has been immediate and intense: revoking all DigiNotar signatures.

The ComodoHacker, who is an ideologically-driven Iranian, takes credit for the breach. Allegedly, this is ComodoHacker's second feat this year, the first being the Comodo CA in March when false certificates were obtained for Google, Yahoo, Skype, and other major websites. Fox-IT's report (PDF) links the hacker to Iran and suggests the objective was to intercept secure communications in Iran.

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