Circle and Tether have frozen over $65 million in assets linked to a suspected exploit of cross-chain router protocol Multichain. Unexplained large outflows from the Multichain #MPC bridge occurred on July 6, with over $125 million in cryptocurrencies withdrawn from multiple wallets across various ecosystems. The reason for the abnormal transfers remains unknown. Multichain has suspended its bridging service as a result, and investigations are ongoing. Blockchain security firm SlowMist revealed that over $30 billion in #crypto assets has been hacked since 2012, with bridges like Multichain among the most vulnerable targets.