system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does a "dead man's switch" work?

Some public figures like Edward Snowden has said that if he happens to die, his death would automatically leak very secret information, using this   as a way to keep him from being asassinated. How does the information get leaked right after the person dies?
gpt
He probably has a program on a computer that will leak the information if a password isn't entered every so often. So if he dies he can't enter the password and the information gets leaked after a period of time automatically.