SSL Certificates Stolen From DigiNotar

Approximately 531 certificates were stolen, possibly by the Iranian Government.

Technet has a very good article around why such an attack is brutal and how to protect against it

Microsoft feels this could even lead to attackers pushing malware via Windows automatic update

Impact of this hack:

        Microsoft flips 'kill switch' on all DigiNotar certificates

        Mozilla asks all users to delete DigiNotar certificate, and has released a Firefox update

        Hackers spied on 300,000 Iranians using fake Google certificate

        Google's Chrome was able to provide some protection to its users

Update 07-Sep-11:

        Not surprisingly, the same hacker which attacked Comodo, has taken the responsibility of this hack

        To make matters worse, he claims to have compromised four other Certificate Authorities (CA)..!!

        GlobalSign CA is one of the mentioned four, and is investigating this claim

Update 09-Sep-11:

        Fox-IT has published a very good report on the incident

        Apple finally blocks the stolen certs

        ComodoHacker claims he can now exploit Windows Update as well

Update 12-Sep-11:

        GlobalSign set to reopen Tuesday (13-Sep) despite web server hack

Update 27-Sep-11:

        DigiNotar has filled for bankruptcy, plus the Dutch government has revoked their root cert

Update 28-Jun-12:

        Dutch govt tells us how difficult & time consuming it is to replace all digital certs in an organization.

Update 01-Nov-12:
Fox IT now details the attack