Hackers may have just stolen $1 million from the Ethereum Classic blockchain in a “51%” attack

On Saturday, the Coinbase security team noticed something troubling. Someone had made a deep reorganization in the distributed ledger for Ethereum Classic, a smaller spinoff from the Ethereum coin. The attackers had pulled off the cryptocurrency equivalent of writing a bad check. The initial fraud reported by Coinbase on Monday was $460,000, but in the days that followed, the total amount rose to over $1 million, spread over 20 different transactions. Coinbase told The Verge that no wallets controlled by the company or its customers were involved. The company’s security team only detected the attack because, as security engineer Mark Nesbitt told The Verge, “whether or not it was directed at us, it could have been.” The company halted... Continue reading…

Why the Ethereum Classic hack is a bad omen for the blockchain

On Saturday, the Coinbase security team noticed something troubling. Someone had made a deep reorganization in the distributed ledger for Ethereum Classic, a smaller spinoff from ...

Wed 9 Jan 19 from The Verge

Coinbase freezes Ethereum Classic trading following attack

Coinbase is preparing to list a lot of new coins this year, but its first major piece of action in 2019 is to temporarily pause one of its existing portfolio. The exchange said it has stopped ...

Tue 8 Jan 19 from TechCrunch

Almost $500,000 in Ethereum Classic coin stolen by forking its blockchain

Rollback attack let attackers spent 88,500 previously spent coins.

Mon 7 Jan 19 from Arstechnica

Ethereum Classic cryptocurrency pulled from Coinbase after attack - CNET

A hack on the cryptocurrency let attackers spend coins twice.

Mon 7 Jan 19 from CNET Cutting Edge

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