Dekart Private Disk Multifactor is a volume-based, on-the-fly disk encryption application, which enhances the strong NIST-certified AES 256-bit encryption algorithm with a second and third authentication factor Â? a smart card or token, and a biometric device. ompatible with virtually any version of Windows. Smart cards, tokens and biometric devices of various types are supported, allowing you to build a solution which suits your needs best. A smart card or token will block itself after an incorrect PIN was entered multiple times; while biometric verification ensures that even if the PIN of a lost or stolen token is known, the data are still well-guarded. This makes Private Disk Multifactor the best tool to prevent unauthorized data access. The contents of a virtual disk are additionally protected by Disk Firewall, a unique proactive defense mechanism that guards your private data from Trojans, viruses or other types of malware. Disk Firewall controls which applications are allowed to access the encrypted disk.