After breaching the Dutch CA (Certification Authority) DigiNotar, Iranian hackers managed to sign forged certificates for the domains of spy agencies CIA, Mossad and MI6. Leading certification authorities like VeriSign and Thawte were also targeted, as were Iranian dissident sites.
The cyber attack on DigiNotar, a Dutch subsidiary of VASCO Data Security International Inc, is much more serious than previously thought. Last July hackers gained access to the network and infrastructure of several of DigiNotar’s CAs. Once inside, they generated hundreds of forged certificates for third party domains.