wipe(To remove all data from a mobile device that has been lost, stolen, or compromised); clear(When Windows Disk Protection is enabled, to erase or empty the cache file on the hard disk when a user logs off or the computer is restarted); clear(When Windows Disk Protection is enabled, to erase or empty the cache file on the hard disk when a user logs off or the computer is restarted)
erase(To remove data permanently from a storage medium. This is usually done by replacing existing data with zeros or meaningless text or, in magnetic media, by disturbing the magnetic particles' physical arrangement, either with the erase head or with a large magnet)
