Ethical Hacking Training at InfoSec Institute Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package. | Computer Forensics Training at InfoSec Institute Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors. |

| Subject: | Re: Shred. Was: Securely wiping... |
|---|---|
| Date: | Wed, 06 Oct 2004 14:14:32 -0700 |
Nathan R. Valentine wrote:
Generally speaking, it is more reliable to shred a device than a file, since this bypasses the problem of filesystem design mentioned above. However, even shredding devices is not always completely reliable. For example, most disks map out bad sectors invisibly to the application; if the bad sectors contain sensitive data, `shred' won't be able to destroy it.
I'll repeat an assertion that I've made before -- overwriting offers only a probabilistic reassurance that data cannot be reconstructed. Some transparent encryption mechanism in which the key to a file is "lost" provides the ability to "shred" a file, even on read-only or unmounted media.
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | RE: Forensic Copy of Files off a CD..., Jerry Shenk |
|---|---|
| Next by Date: | RE: Encrypted Disks, Jerry Shenk |
| Previous by Thread: | Shred. Was: Securely wiping..., Nathan R. Valentine |
| Next by Thread: | RE: Shred. Was: Securely wiping..., Glenn_Everhart |
| Indexes: | [Date] [Thread] [Top] [All Lists] |