Stop Your Program Being Terminated

I have a Password protection system to unlock my computer
But I know how to stop Ctrl+T terminating my password program as if it didnt exist.

People in IRC suggested os.pullEventRaw()
However I have no idea how to implement it and all my efforts resulted in a computer crash.

Would someone be able to post a script or something which will cancel Ctrl+T?

you could for example put your password system into another file.
And into the startupsystem you write:

while true do
shell.run("check")  --for "check" you write the name of your passwordsystem file.
end

that would be the simpliest method.

You could also change the os.pullEvent() method but I think in your case it's not necessary.

I guess it's something like

e, p == os.pullEventRaw()
if e == "terminate" then
pcall()
print( "Too bad." )
end

There's a thread called "CTRL+T" where this question has already been answered:
http://www.computercraft.info/forums2/index.php?/topic/61-ctrlt