How can I activate the screen saver immediately after Mac OS X (10.6) logs me in automatically? I want the computer to reboot and log me in after a power failure, but I don't want it to be accessible to someone who happens to be standing nearby.
Add a login script. It could either be done via the Shell:
or via Applescript:
Applescript is probably the easiest way if you're not familiar with Shell scripting. Open Script Editor (Spotlight it), paste in the above script, and click
If you're really that concerned about security though, you should disable autologin.
The system actually has built-in support for doing this: