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On the evening of October 29, the largest prediction platform Polymarket switched the exchange to cancel-only mode. Through a compromised third-party contractor, approximately $2.65 million drained from user accounts in a matter of minutes.
Indonesia's largest crypto exchange Indodax has suspended all deposit and withdrawal operations. The reason is a sharp increase in the number of cyberattacks on the platform. The announcement was made on October 29 at around 15:15-15:25 Moscow time.
South Korea's second-largest exchange by trading volume, Bithumb, discovered on October 27 unauthorized access to a corporate system where employees communicate and exchange files. On the same day, Coinbase reported its own leak — but not because the exchange itself was hacked.
GMO Internet's cloud hosting, where traders keep MetaTrader terminals and trading robots, was hacked. Broker OANDA Securities Japan postponed client payouts on October 22 to check applications for fraudulent transfers.
Wallets linked to US authorities transferred about 17,733 BTC to Coinbase Prime. The bulk of the coins were likely moved for custody rather than for immediate sale on the market.
