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51% Attacks
Ethereum Classic Attacker Successfully Double-Spends $1.68M in Second Attack: Report
The attacker attempted to double-spend roughly $3.3 million during the second attack.

Ethereum Classic Suffers Second 51% Attack in a Week
Ethereum Classic has suffered a 4,000-block-long reorganization, its second such incident in five days. The first attack, which saw more than 3,000 blocks reorged, had an attacker steal more than 800,000 ETC, worth about $5.6 million.

Ethereum Classic Suffers Reorganization That Resembles 51% Attack Amid Miner Complications
Developers advise exchanges to pause ETC deposits and withdrawals.

Attempted 51% Attack on Bitcoin Gold Was Thwarted, Developers Say
A 51 percent attack on Bitcoin Gold was unsuccessful.

Bad Actors Rent Hashing Power to Hit Bitcoin Gold With New 51% Attacks
The two attacks last Thursday saw over $87,000 in the cryptocurrency double spent.

The Vertcoin Cryptocurrency Just Got 51% Attacked – Again
Vertcoin, a crypto project that sets out to keep mining power decentralized, has suffered its second 51-percent attack in a year.

What a Bitcoin 'Reorg' Is and What Binance Has to Do With It
The suggestion to reverse transactions on the bitcoin blockchain has caused an uproar on social media with several community members espousing such an idea is not only infeasible but reckless.

51% Attacks for Rent : The Trouble with a Liquid Mining Market
As the global pool of hashing power grows more liquid, arbitrageurs may see a financial incentive in "rent-a-miner" attacks.

The Ethereum Classic Attacker Has Sent a Bigger Message
If a permissionless blockchain doesn’t have a large enough community of users, developers and miners, its vulnerable, writes Michael J. Casey.

Exchange Says 51% Attacker Returned $100K-Worth of Ethereum Classic
Cryptocurrency exchange Gate.io said Saturday that $100,000 in ethereum classic has been returned following a recent 51-percent attack.
