After some major DEC clients were compromised, the company’s programmers wrote a security tool that would detect the Chaos patch. Lenny and I located the detection software and analyzed it, then simply modified our version of the Chaos patch so DEC’s tool wouldn’t be able to find it anymore. It was quite simple, really. This made it easier for us to install our patch into numerous VMS systems on Digital’s worldwide network, known as Easynet.