[6] In April 2002, Entrust's public key infrastructure technology served as the foundation for the prototype of what is now the United States Federal Bridge Certification Authority.

[8] The technology is designed to automatically analyze and categorize email message and document content based on the contextual meaning, rather than pre-defined word lists.

From a GAAP accounting perspective, the total purchase price was approximately $55.0 million, including assumed stock options, transaction expenses and net asset value.

It originally was funded by the Texas Pacific Group, Walden International, Ram Shriram of Google and Dave Roux of Silver Lake Partners.

Specifically, Entrust supplied certificate revocation list distribution points (CRL-DP), Patent 5,699,431, to Sun under a royalty-free license for incorporation of that capability into the Mozilla open-source libraries.

Company founder Willis K. Drake led a team of engineers that invented machines that enabled secure and productive personalization of credit cards beyond the imprinters that Addressograph had offered.

[27] Today, the company offers a wide variety of digital security and credential issuance like crossing borders, making purchases, accessing e-government services or logging into corporate networks.

The organization has expanded its offerings through a series of acquisitions, including: In Jan-2025, Sectigo (formerly known as Comodo CA) announced it was acquiring the public certificate business from Entrust; terms of the agreement were not disclosed.