The correct solution is having an "append only" and a "full control" key for the same account. Keep your full control key on paper in your safe/drawer, almost n

The correct solution is having an "append only" and a "full control" key for the same account. Keep your full control key on paper in your safe/drawer, almost never use it on your computer. Use your "append only" key almost always, if it gets stolen by ransomware, they can't prune your online backups.