The existence of files like fullz.txt highlights the importance of "defense in depth." Because your static information (like your SSN or birthdate) cannot be easily changed once leaked, security experts recommend:

Utilizing hardware keys or authenticator apps (rather than SMS) adds a layer that static data cannot bypass.

The release of Fullz.txt has severe consequences for individuals whose information is contained within it. With access to sensitive data, malicious actors can engage in various forms of cybercrime, including: