This is legacy software. You can't even turn it on anymore. It requires an upgrade from a previous OS that had it enabled. It was rarely used prior to it being replaced by FileVault 2 due to its many technical limitations. Any serious enterprise user used one of the third party alternatives prior to FileVault 2 being released. This basically doesn't affect anyone. This has been known about for three months and has been a non-issue that whole time.
5/7/12 at 10:39am