Cobo co-founder Shenyu has claimed that US security forces have accessed the private keys of 120,000 Bitcoins ($BTC).
According to Shenyu, this access was made possible not by any “hack” or system breach, but by detecting a randomness error used in generating the private keys.
According to the information shared, the vulnerability affected over 220,000 wallet addresses. The private keys in these wallets were generated by a faulty pseudo-random number generator (PRNG) that operated with a fixed offset and pattern. This made the keys predictable.
According to the findings, all weak wallets within the faulty PRNG range held a total of 136,951 $BTC. However, the large withdrawal wave that began after transaction “8b9de493..08f4a4c2” (starting with “95384d1c..8617c9e2”) lasted approximately two hours, and by the time transaction “14bb56a2..07983bcd” reached, the total balance had dropped to 193 $BTC. In the following days, this amount decreased to approximately 4 $BTC.
Another striking detail about the suspicious transactions is the fact that many transfers used a flat fee of exactly 75,000 satoshis. Experts say this amount is unusual and could offer additional clues about the technical aspects of the incident.
*This is not investment advice.