January 5, 2019 - Ethereum Classic 51% Attack 53,000 ETC
The attack begins January 5th at 19:58:15 UTC. Days pass before anyone notices. The attacker dupes several exchanges in the process including Coinbase, Bitrue, and Gate.io. the attack is simple
- Make a deposit,
- make a withdrawal.
Attacker was having the hashpower to ensure that the transactions he wants to exist exist (deposit) and that the ones he’d rather be forgotten are (withdrawal).
Two addresses certainly involved in the attack possess over 53,000 ETC