Are codelock hacks now a thing?

Just the other day my friend's base, our starter base, my base, and my other friends base were all codelock raided within 2-3 hours of each other. There was not a common teammate who knew all the codes to each others bases, so that factor is out. I haven't heard any complaints about this subject, but I saw the same two guys in two of the bases. They also admitted to "guessing" our code and told us, but it wasn't the code. They said "1234" it actually was "7313", so I'm guessing they didn't know what code unlocked it therefore I am guessing it is a program.

Has anyone else had experience with this?