By Hannah Lang and Suzanne McGee (Reuters) -The U.S. securities regulator said someone briefly accessed its X social media account on Tuesday and posted a fake message saying it had approved exchange traded funds (ETF) for bitcoin, a move eagerly awaited by the crypto industry. However, the Securities and Exchange Commission (SEC) said it has not yet approved spot bitcoin ETFs and its account on X, the platform formerly known as Twitter, had been compromised briefly by an unknown party after about 4 p.m. Eastern time (2100 GMT). The “unauthorized access has been terminated,” the agency said. I…