in reply to
newb: Best way to protect CGI from non-form invocation?
The most common tactics is to use a captcha, but like all methods that seek to keep bots out (and humans in) it has weaknesses. The comments in this thread discuss this problem.
By rote learning.
Via Genetic memory.
It's provided by my firmware.
I just remember them.
Thirty days hath September
My computer gets it right, usually.
I just ask someone else.
Someone punches me on the first of the month.
Results (108 votes),