ClearingClearing information is a l

Clearing
Clearing information is a level of media sanitization that protects the confidentiality of information against a robust keyboard attack. Simple deletion of items does not suffice for clearing. Clearing must not allow information to be retrieved by data, disk, or file recovery utilities and must be resistant to keystroke recovery attempts executed from standard input devices and from data scavenging tools. Overwriting is an acceptable method for clearing media. The security goal of overwriting is to replace written data with random data

There are several overwriting software products to overwrite storage space on media. CSULB Information Technology Services provides software tools and instructions to securely clean the data from electronic storage media. Overwriting cannot be used for media that are damaged or not rewritable. In such cases, electronic media should be destroyed.

Destroying
– When electronic media is inoperable and cannot be cleared, the electronic media must be physically destroyed. While physical destruction can be accomplished using a variety of methods, the campus has purchased a degausser for destruction of hard drives and a shredder for the destruction of other electronic media.