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EXMO Exchange Now Says It Lost 6% of Total Crypto Assets in Monday's Hack

EXMO says it is "assuming" the attacker had prior access to some of its hot wallet keys.

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Cryptocurrency exchange EXMO has given a new estimate for the amount of cryptocurrency lost in a security breach Monday, saying nearly 6% of its total crypto assets were stolen.

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  • The U.K.-based platform had originally estimated that 5% of its cryptocurrency had been lost to the attacker. The total loss in terms of dollar value is still being calculated, the exchange told CoinDesk Tuesday.
  • EXMO said, after analyzing logs for the affected servers, it is "assuming" the attacker had access to some of its the private keys and that it's trying to find out how this was possible.
  • EXMO saw losses in six cryptocurrencies out of 57 supported: bitcoin, XRP, tether, ether and ethereum classic. Each digital asset is hosted on its own server, the firm said.
  • Most of the stolen bitcoin was sent to an address that has accrued 306.99 BTC, worth around $7,206,200 at time of writing.
  • EXMO said it contacted cryptocurrency exchange Poloniex with a request to block an associated account and has also informed London police about the breach.
  • Production servers were not affected by the breach and information about transactions and client data was not accessed by the hackers, it said.
  • The platform hopes to be able to reinstate withdrawals and deposits within the next few days.

See also: CEO of DeFi Insurer Nexus Mutual Hacked for $8M in NXM Tokens

Tanzeel Akhtar

Tanzeel Akhtar has contributed to The Wall Street Journal, BBC, Bloomberg, CNBC, Forbes Africa, Financial Times, The Street, Citywire, Investing.com, Euromoney, Yahoo! Finance, Benzinga, Kitco News, African Business Magazine, Hedge Week, Campden Family Office, Modern Investor, Spear's Wealth Management Magazine, Global Investor, ETF.com, ETF Stream, CIO UK, Funds Global Asia, Portfolio Institutional, Interactive Investor, Bitcoin Magazine, CryptoNews.com, Bitcoin.com, The Local, The Next Web, Mining Journal, Money Marketing, Marketing Week and more. Tanzeel trained as a foreign correspondent at the University of Helsinki, Finland and newspaper journalist at the University of Central Lancashire, UK. She holds a BA (Honours) in English Literature from the Manchester Metropolitan University, UK and completed a semester abroad as an ERASMUS student at the National and Kapodistrian University of Athens, Greece. She is NCTJ Qualified - Media Law, Public Administration and passed the Shorthand 100WPM with distinction. She does not currently hold value in any digital currencies or projects.

Tanzeel Akhtar