More than 500 inactive Ethereum wallets have been compromised, resulting in the theft of approximately $800,000. The attackers initially transferred over 260 ETH, valued at $600,000, to a known address before routing an additional 324 ETH through THORChain, suggesting an effort to obscure the funds' origins. While the exact method of attack remains unknown, experts speculate that the breach may have been facilitated by private key exposure, mnemonic phrase leakage, or outdated wallet software. This incident underscores the persistent security risks associated with dormant cryptocurrency assets.