Once again, Microsoft Corp. has revoked a collection of what once were VeriSign Inc.’s digital certificates, another sign of how fragile that foundational digital ecosystem is. The action was ...

VeriSign moved to allay confusion on Thursday, after the expiration of some of its certificates that verified it as a certificate-issuing authority. Users have experienced problems when accessing ...

When VeriSign Inc. disclosed last week that it had issued two digital certificates to an individual who fraudulently claimed to be a Microsoft Corp. employee, the ...

Mountain View, Calif.-based Verisign, a managed security service provider, said that it has immediately discontinued the flawed MD5 cryptographic function used for digital signatures, while offering a ...