sysinstall and xscreensaver

Jamie Zawinski jwz at
Tue Apr 8 19:32:05 PDT 2003

Shane Helms wrote:
> Against a determined adversary, xlockmore is probably (?) a bit more
> secure than xscreensaver

Excuse me?  In what bizarro-universe can you possibly imagine xlockmore
to be more secure than xscreensaver?

The xlock/xlockmore model (of running the graphics demos and security
code in the same address space) is *fundamentally* broken from a
security standpoint.  With xscreensaver's design, a fault in the
eye-candy code will not cause the screen to unlock, as happens with

In detail:

Jamie Zawinski
jwz at   
jwz at

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