Yeah, that particular bit of FUD is quite popular with the anti-git crowd. It's nonsense. Any attempt to edit the history of a public repository will be noticed

Yeah, that particular bit of FUD is quite popular with the anti-git crowd. It's nonsense. Any attempt to edit the history of a public repository will be noticed instantly by anybody who tries to sync up, no matter what. Stick in a post-commit hook to force a sync to a backup repo nobody has access to if you want to be really paranoid, but as it is, git is already far more resilient against tampering with the public history than svn ever was.