localTrezor is a Windows-based application that uses client-server technology and creates a protected, safe store (a so-called vault or trezor) for the user's data: the data are encrypted, password protected, and physically may be stored in several copies (located on several discs, or even several computers). It may be used by up to 60 or 80 users simultaneously. Different rights of access may be defined for the users to the stored data.