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Security Firm Asks Exchanges to Help It Find Ethereum Classic 'Attacker'

Security firm SlowMist has come out with a public analysis of the latest chain attacks seen on ethereum classic.

Diperbarui 13 Sep 2021, 8.44 a.m. Diterbitkan 9 Jan 2019, 4.51 p.m. Diterjemahkan oleh AI
Ethereum classic (CoinDesk archives)
Ethereum classic (CoinDesk archives)

China-based security firm SlowMist has claimed that it has enough evidence to locate the culprit behind recent chain attacks on ethereum classic.

In a Medium article published Wednesday, SlowMist summarized the bulk of their analysis on ethereum classic, specifying the three wallet addresses and four transaction hashes that launched the two-day block reorganization (reorg) attacks on the network. The company also corroborated information released by cryptocurrency exchange Coinbase.

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Both SlowMist and Coinbase said double spends have occurred as a result of block reorgs, with SlowMist contending that a total of seven transactions were rolled back from the network and 54,200 ETC (almost $270,000) spent a second time.

Affirming that these attacks to have started as early as Saturday 19:58 UTC, the company highlights that similar attacks on the network have now stopped, with the last documented one occurring Tuesday at 4:30 UTC.

SlowMist further said that it is still seeking to find out where exactly the identified addresses are located, which the firm said can be deduced "if the relevant exchanges are willing to assist."

Speaking to CoinDesk, SlowMist identified Gate.io, Bitrue and Binance as the exchanges they’re looking to work with in order to locate the attacker.

When asked to elaborate on the exact information beyond geography SlowMist is looking to identify about those behind the attack, the team responded in an email they could not disclose such information, calling it "a secret."

Both Gate.io and Bitrue have issued public statements on their official Twitter accounts claiming 40,000 ETC and 13,000 ETC in double spends on their respective exchange platforms.

Ethereum classic developers are working closely with the SlowMist team to identify the origin of these attacks and will be meeting today during a private Discord call at 5 p.m. UTC to discuss actionable items moving forward.

In advance of this meeting, ethereum classic developers tweeted a summary of current priorities for the community, emphasizing that "we will not reorg the chain or revert the events on chain under any circumstance."

Map image via Shutterstock

Wolfie Zhao contributed reporting.

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KuCoin Hits Record Market Share as 2025 Volumes Outpace Crypto Market

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KuCoin captured a record share of centralised exchange volume in 2025, with more than $1.25tn traded as its volumes grew faster than the wider crypto market.

Yang perlu diketahui:

  • KuCoin recorded over $1.25 trillion in total trading volume in 2025, equivalent to an average of roughly $114 billion per month, marking its strongest year on record.
  • This performance translated into an all-time high share of centralised exchange volume, as KuCoin’s activity expanded faster than aggregate CEX volumes, which slowed during periods of lower market volatility.
  • Spot and derivatives volumes were evenly split, each exceeding $500 billion for the year, signalling broad-based usage rather than reliance on a single product line.
  • Altcoins accounted for the majority of trading activity, reinforcing KuCoin’s role as a primary liquidity venue beyond BTC and ETH at a time when majors saw more muted turnover.
  • Even as overall crypto volumes softened mid-year, KuCoin maintained elevated baseline activity, indicating structurally higher user engagement rather than short-lived volume spikes.

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How a 'perpetual’ stock trick could solve Michael Saylor’s $8 billion debt problem

Strive CEO Matt Cole speaks at BTC Asia in Hong Kong (screenshot)

The bitcoin treasury firm is using perpetual preferreds to retire convertibles, offering a potential framework for managing long-dated leverage.

Yang perlu diketahui:

  • Strive upsized its SATA follow on offering beyond $150 million, pricing the perpetual preferred at $90.
  • The structure offers a blueprint for replacing fixed maturity convertibles with perpetual equity capital that removes refinancing risk.
  • Strategy has a $3 billion convertible tranche due in June 2028 with a $672.40 conversion price, which could be addressed using a similar preferred equity approach.