Mask your internet identity - 7 ways to stay anonymous online
You can’t erase all of the personal info that’s out on the web, but you hide in plain sight
By Julie Sartain | Network World US | Published: 17:59, 08 May 12
Don’t delete, overwrite
Never try to delete anything, always edit and resave the edited data over the old data. All of your information is digital and controlled by programming code that’s always looking for "new" files. These systems are programmed to save all the deleted files, but edited files; that is, files with the same filename are backed up onto servers on top of (that is, they overwrite) the old files with the same filename. Old versions of the edited files are kept for a few months (more or less, based on the company policies) but, eventually, the older edited files will disappear.