Abstract: A padlock protector which prevents the shackles of the padlock from being cut by bolt cutters. In its simplest form, the protector is a U-shaped device which contains access openings for the padlock shackles on the bottom and having front and back sections which cover the vertical shafts of the shackles while still allowing room for the padlock to fit through the opening of the device to be secured. In a more elaborate alternatively preferred form, the protector, in addition to the above, contains a front section which extends from the top of the padlock to the bottom of the padlock, a lower section which provides access to the keyhole and protection to the keyhole, and a tough flexible strap connecting the lower section of the protector to a padlock shackle.