Tether temporarily blacklisted four THORChain vault addresses on the Tron network, freezing about 1.45 million USDT before unfreezing them roughly two hours later. The action halted Tron-based swaps and liquidity-provider operations, but THORChain restored trading and deposits after the addresses were released. Technical co-founder Chad Barraford accused Tether of acting without explanation or prior communication. The incident follows separate legal actions alleging that Tether froze $2.76 million in USDt linked to an investigation by Brazilian authorities and $42.4 million after an alleged informal request from U.S. Homeland Security Investigations. Tether and THORChain did not immediately respond to requests for comment.