Did you really release a virus? Yes, I wrote and released the MBDF-A virus in early 1992. I was properly punished for it years ago, and I now spend my time on much more productive and socially acceptable projects. I am always open to discussion about this; my e-mail address is on the previous help page. Why all the fuss over the MBDF-A virus? I’m trying to put back into the Macintosh community as much as I took out of it. If you can think of anything else I could do towards this end, let me know. Is this program infected? To the best of my knowledge, it was not infected with any viruses or trojan horses when I released it. The program checks its own integrity every time you run it; if it becomes infected or if it is altered in any way, it will complain that it “has been altered, possibly by a virus” and will refuse to run.