I think so, unless you count the prize for "most interesting cryptanalysis of Salsa20" as a security guarantee. Also, someone discovered a bug in qmail a while

I think so, unless you count the prize for "most interesting cryptanalysis of Salsa20" as a security guarantee. Also, someone discovered a bug in qmail a while back, but DJB disputed that it was security-related and didn't pay. Having seen the details, I'm inclined to side with DJB.