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Stung by a cyberattack that caused it to issue fake online security certificates for hundreds of companies, the Dutch certificate authority is closing for business.
Microsoft fixes 15 holes in Windows, Office, and other software, and blacklists six more root certificates. Also, Adobe issues critical security updates for Reader and Acrobat.
Apple has issued a security update for both OS X 10.6 and 10.7 that addresses concerns over recent fraudulent certificates from the DigiNotar certificate authority.
Claiming credit for the cyberattack against Dutch certificate company DigiNotar, Comodohacker is threatening to release other fake certificates.
Certificate authority DigiNotar says its system was breached and that a fraudulent certificate for Google.com found its way to the Web.
The hacker who breached security at DigiNotar and caused it to release fake digital certificates is now claiming he can exploit Microsoft's Windows Update to issue fake updates.
GlobalSign, which provides digital certificates used to authenticate Web sites, says it is investigating Iranian hacker's claim that he compromised the company.
Domains for which fraudulent security certificates were issued includes CIA, MI6, Facebook, Microsoft, Skype, and Twitter. Spying on Iranian dissidents may have been the hackers' goal.
Iranian hacker who claims responsibility for breaches at certificate authorities threatens broader attacks. Firefox maker gives digital-certificate sellers a week to boost security.
Is Iran behind a fraudulent Google.com digital certificate? The situation is similar to one that happened in March in which spoofed certificates were traced back to Iran.