US law enforcement obtained private keys for 120,000 Bitcoin, valued at $15 billion, due to a flaw in the pseudo-random number generator used by compromised wallets.
Cobo co-founder Shen Yu disclosed that U.S. law enforcement has acquired the private keys for 120,000 Bitcoin, valued around $15 billion, which were mysteriously transferred in 2020. The keys were obtained due to a flaw in the pseudo-random number generator used by affected wallets, which made private keys predictable. This vulnerability affected over 220,000 addresses, and some users continue sending funds to these compromised addresses, indicating ongoing risk.