BlockThreat - Week 28, 2020
Bitcoin Gold | Cashaa | Ravencoin | Ledger
Continuing with the blockchain exploitation trend from last week, Bitcoin Gold has almost suffered a 51% attack if not for developers learning of a massive mining operation. Check out a thrilling incident report by Ravencoin folks racing against the clock to kick out attackers exploiting an inflation bug. Cashaa exchange had a few million dollars worth of crypto stolen and other news in this edition of BlockThreat.
Hacks
On July 10, 2020 Bitcoin Gold developers announced an attempted 51% attack on their network. An attacker mined massive 1300 blocks on Nicehash in secret starting on July 1st. It is not clear how BTG developers learned of the impeding attack; however, they were able to secretly supply miners updated node software with a checkpoint at block height 640650. News of these actions were only made public after the attacker posted their chain on July 10th only to find their blocks dropped by legitimate miners. According to Crypto51.app, it costs only $297 per hour to attack Bitc…
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