When I was in school Internet wasn't a thing yet. However, me and some friends "hacked" the program that blocked virtually everything interesting unless you ha

When I was in school Internet wasn't a thing yet. However, me and some friends "hacked" the program that blocked virtually everything interesting unless you had the password on our school computers. The first thing we did was boot up in DOS. There we found the secret password file for the blocking program. Alas, when we tried the password it didn't work. It must be encrypted! So we went back into DOS and renamed the password file. When we booted up Windows again the program thought it was running for the very first time and asked us to enter a password. We entered "AAAAAA" and exited into DOS again. The new password file now contained the "encrypted" password: "GGGGGG". Hmm, there's a pattern here... We then restored the old password file and "decrypted" the original password. From that point on we had full access to any system! Those were the days!