DigiCert is not DigiNotar
Just a short note for folks hitting the search engines wondering if DigiCert and DigiNotar are the same firm: the answer is "No".
DigiNotar is the CA that has been in the news lately who suffered a breach resulting in the issuance of fraudulent ssl certificates. DigiCert has not been breached...yet...
Note: Strangely, the interesting thing about DigiNotar is that unless they dropped them recently, DigiNotar only sells organization validated and extended validation certs. Their wildcard ssl cert requires not only domain validation but organizational validation as well as contacting an authorized representative.