The Graveyard
Real wallets that were actually cracked.
Not by random chance. By human stupidity.
Brain Wallets
People who used passwords like "password123" or "bitcoin" as their private key.
All drained within seconds.
Bitcoin Puzzles
Intentionally created puzzles with reduced key space.
Legitimate targets with real rewards.
Profanity Bug
Vanity address generator with weak randomness.
$160M+ stolen in 2022.
The tool used only 32 bits of entropy instead of 256. Attackers brute-forced all possible keys in hours.
Weak Randomness
Wallets generated with predictable random numbers.
Including early blockchain.info bug.
Lesson: Never trust weak random number generators. Your entropy is your security.
🎓 The Moral of the Story
Let devices handle randomness
Humans are bad at randomness
256 bits is uncrackable (if random)