Bittrex, the cryptocurrency exchange, has faced challenges from the US Securities and Exchange Commission (SEC) over alleged violations of federal regulations. The SEC charges Bittrex with operating an unregistered national securities exchange, broker, and clearinghouse, as well as failing to register for its single unified order book operation. According to a statement from Bittrex, the company intends to take legal action against the SEC's enforcement actions.The SEC recently took action against Beaxy, which chose to settle with the agency. The SEC may also consider similar charges against Coinbase, another prominent US cryptocurrency exchange, after it too received a 'Wells notice' from regulators.In response to the SEC's allegations, Bittrex maintains that its operations comply with regulatory requirements and repeatedly attempted communication with the SEC for clarification on distinguishing between digital assets and securities. However, Bittrex claims the SEC ignored these efforts.