safe-rm is intended to prevent the accidental deletion of important files by replacing /bin/rm with a wrapper that checks the given arguments against a configurable blacklist of files and directories that should never be removed. Users who attempt to delete one of these protected files or directories will not be able to do so and will be shown a warning message instead. Protected paths can be set both at the site and user levels.
SQL::Yapp is a Perl module which embeds SQL completely into Perl. It checks SQL syntax at compile time and fully parses SQL to allow usage of any Perl scalars, arrays, and hashes in an intuitive and safe way. It makes SQL injections virtually impossible while making you feel as if SQL syntax were native to Perl.
confinedrv creates a new device node /sdx under /dev/mapper which mirrors the given base drive with certain partitions faded out and other partitions limited to read-only or read-write access. It is commonly used to safely boot an existing OS installation with Qemu or any other virtualization software from the same hard disk as the host operating system has been booted from.