Odaily News SlowMist Chief Information Security Officer 23pds said in a post on X: "Authy, the most popular 2FA service after Google Authenticator, was hacked and the phone numbers of 33 million users were leaked. If you are an Authy user, please be wary of phishing attacks. The official developer Twilio has confirmed the vulnerability. A large number of practitioners in the cryptocurrency industry use this 2FA software, so please pay attention to the security of your assets."