Bridge
- IoTeX ioTube Bridge Drained $4.4M: When One Key Is the Only Lock
On February 21, 2026, a single compromised private key gave an attacker full administrative control over IoTeX's ioTube cross-chain bridge on Ethereum. The attacker drained $4.4M in real bridged assets and minted hundreds of millions of unbacked tokens on top. This is not a novel attack -- it is the same failure mode that has recurred across the most expensive bridge hacks in crypto history.