Hacken report highlights centralization risks in USDT signature keys

Blockchain security firm Hacken reports that approximately half of all circulating USDT, including $91.3 billion on the Tron network, is controlled by a 2-of-3 multi-signature contract lacking robust revocation mechanisms. Hacken warns that compromising two keys could allow attackers to mint tokens or freeze addresses. Additionally, Tether (Tether) reuses the same six keys across Ethereum, Avalanche, and Celo. While Bluechip upgraded Tether's rating to C following a KPMG audit showing a $6.8 billion reserve surplus, Hacken assigned USDT a low security score