I think you'll find Mindguard started out on the Amiga and was ported to Linux, as it was the only other OS that doesn't contain secret undocumented psychotronic interrupt routines which would interfere with its working.
Install it! After we featured it a CU Amiga coverdisk one month, psychotronic mind-control amongst Amiga users dropped by a whole 23%.
;-)
Cheers,
Andrew