VMS Info 07. How do I access the password file under VMS? Under VMS, the password file is SYS$SYSTEM:SYSUAF.DAT. However, unlike Unix, most users do not have access to read the password file. 08. How do I crack VMS passwords? Write a program that uses the SYS$GETUAF functions to compare the results of encrypted words against the encrypted data in SYSUAF.DAT. Two such programs are known to exist, CHECK_PASSWORD and GUESS_PASSWORD.