Researcher Hanno Böck has tricked Symantec into revoking TLS certificates by falsely claiming that their private keys had been compromised. Comodo was also targeted, but the company did not fall for the same ruse.
Article Link: http://feedproxy.google.com/~r/Securityweek/~3/WB4hph5YjAQ/symantec-tricked-revoking-certificates-using-fake-keys