As a kid, I remember hearing the audio in the Mission: Impossible TV show with its urgent exhortation that, "This tape will self destruct in five seconds." While it may be a cool gimmick in a spy-vs.-spy TV show, self-destructing data can cause problems for large enterprises.
I much prefer solid encryption products that require a difficult-to-guess and difficult-to-crack passphrase, not just the user's operating system password. Better yet, I like to see encryption products that store the crypto keys on a separate token, such as a USB key fob, but still require a strong passphrase for decrypting the data.
This was first published in June 2007