Security advisories, best practices, and network health
Essential security guidance for Ethereum Classic users covering wallet safety, transaction verification, and scam awareness.
The ETC community issued warnings about fraudulent websites impersonating legitimate dApps to steal user funds through phishing and malicious smart contracts.
Ethereum Classic experiences massive hashrate increase as GPU miners migrate from Ethereum following the proof-of-stake transition.
Following 51% attacks in 2020, Ethereum Classic implemented MESS (ECBP-1100) to penalize deep chain reorganizations — and later deprecated it as hashrate grew.
Ethereum Classic implemented ECBP-1100 (MESS) in October 2020 to defend against 51% attacks. MESS was later deprecated after hashrate grew substantially post-Merge.
In August 2020, Ethereum Classic experienced three chain reorganization attacks. The network responded with ECBP-1100 (MESS), increased confirmations, and ultimately benefited from post-Merge hashrate growth.
Why confirmations matter on proof-of-work chains, how many are needed for different transaction sizes, and the economics of chain reorganizations.
How denial-of-service attacks target blockchain networks, the 2016 attacks on Ethereum/ETC, and the protocol-level defenses that were implemented.
After the 2016 DAO fork created two chains with shared history, replay attacks became a real concern. How ETC and ETH addressed the problem.
At block 2,500,000 on October 24, 2016, the Gas Reprice upgrade (EIP-150) was activated as an emergency response to the Shanghai DoS attacks that had been crippling the network.
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