Was the password to the POTUS Twitter account. No 2 factor authentication. The hacker was an ethical guy and reported it to Homeland security. https://techcrunch.com/2020/10/22/dutch-hacker-trump-twitter-account-password/ Victor Gevers, a security researcher at the GDI Foundation and chair of the Dutch Institute for Vulnerability Disclosure, which finds and reports security vulnerabilities, told TechCrunch he guessed the president’s account password and was successful on the fifth attempt. The account was not protected by two-factor authentication, granting Gevers access to the president’s account. After logging in, he emailed US-CERT, a division of Homeland Security’s cyber unit Cybersecurity and Infrastructure Security Agency (CISA), to disclose the security lapse, which TechCrunch has seen. Gevers said the president’s Twitter password was changed shortly after.
