The IdenTrust TrustID Medium Assurance Business Identity Hardware Storage Certificate is designed for employees associated with valid organizations to sign and encrypt emails and documents. It is stored on a FIPS 140-2 compliant hardware device, such as a USB token or smart card, and is trusted by Adobe (AATL-enabled). This certificate is publicly trusted, requires identity verification by a Notary Public , and is available only to U.S. residents.