Π in open access dumps of historical slices with BSD 3 code, including the file with the password hashes of the founders of Unix. Since the passwords are hashed using the DES method, which is not a problem for modern computing, enthusiasts recover passwords used by the founders of Unix.
The passwords of almost all the founders of Unix were almost immediately. For example, Brian Kernighan's password was the easy-to-type combination "/.,/.,,", Dennis Ritchie's password was "dmac", Kirk McKusick's was "foobar", and Stephen Bourne's was "bourne".
The exception was Ken Thompson's password. In 2014, after several days of calculations, the password remained unbranded. A few days ago another attempt, and after more than 4 days of brute force using hashcat on a system with an AMD Radeon Vega64 video card, the password was determined (brute force was 930 million hashes per second). The password turned out to be βp/q2-q4!β. Chess lovers have determined that this is the beginning Π² . Ken Thompson this assumption.
Source: opennet.ru