AMSTERDAM – Vasco Data Security International Inc. says its Dutch subsidiary DigiNotar was hacked last month, with the result that some users' supposedly secure communications with websites including Google may have been monitored.
DigiNotar is one of the firms that offers security certificates for the "SSL" cryptographic protocol — in effect, a digital notary that guarantees communications between a user's browser and a website are private.
Vasco, based in Chicago, Illinois, said Wednesday DigiNotar detected the hack on July 19, affecting "a number of domains, including Google.com." The company then tried to revoke all the bogus certificates that had been issued.
Vasco said it has "recently" been informed by the Dutch government it missed "at least one" fraudulent certificate, which has now also been revoked.
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