In Proof-of-Work (PoW) systems, a 51% attack happens when an attacker controls more than half of the blockchain’s hashing power. In some Proof-of-Stake (PoS) variations, it occurs when they control ...

Greedy bots have launched an RBF transaction war over Bitcoin sent to a compromised wallet, according to a post from X.

Coinbase said it had enhanced oversight and compliance testing after coding errors led to gaps in transaction monitoring between 2021 and 2022. Coinbase Europe Limited, the European affiliate of US ...

Crypto exchange Coinbase has agreed to settle with the Central Bank of Ireland and pay a hefty fine over failures in its anti-money laundering transaction monitoring systems. “Coinbase Europe Limited ...