CryptoSlate reports that Polkadot lost $1.38 million after a hacker exploited a security flaw that had been fixed four months prior. The attack resumed on October 26, using its own relayer before the XCM fix. A subsequent upgrade corrected supply issues without altering balances.

Based on the CryptoSlate report; not independently verified.

Source published: Wed, 04 Nov 2026 14:50:52 +0000

[Read the original report](https://cryptoslate.com/polkadot-lost-1-38-million-after-hacker-exploited-security-flaw-fixed-four-months-earlier/)

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