Two Factor Authentication Needed for PGP WDE for OS X

For emergency access to encrypted laptops, we use PKI USB thumbdrives (i.e., SafeNet/Alladin eToken Pro) loaded with an ADK.  This works well on Windows systems, however, we recenly needed access to a system that has OS X, and that mechanism of access failed.  SafeNet (eToken Pro) products support OS X for multi-factor authentication, however, Symantec/PGP does not. 

Bottom line: multi-factor authentication should support both Windows and OS X