"In a previous article I covered the basics of format string attacks. This time I've interviewed Chris Evans, whom I quoted in the last article. Without further ado, here is the interview. "It appears to me that these format strings have been present a very long time. A CERT advisory mentioned them being in WuFTPD since 1993. Do you think attackers have known about them and been using them? (This certainly would be a convenient explanation for many mysterious unsolved break-ins.)