Which is why you store just a little in one address to "give up". And store the rest elsewhere. And never tell anyone how much you really have.
For example, you hold 100 bitcoins. Randall Munroe's wrench hacker holds you up for bitcoin because he knows you have some. You give him 0.1 from an address. He lets you go. You keep 99.9 of your bitcoins, but your attacker thinks he took got the whole bag.
For example, you hold 100 bitcoins. Randall Munroe's wrench hacker holds you up for bitcoin because he knows you have some. You give him 0.1 from an address. He lets you go. You keep 99.9 of your bitcoins, but your attacker thinks he took got the whole bag.