Are Multiple Passes Necessary?
Many data wipe software claim they can wipe a disk for multiple times, 35 passes at most, but for modern hard drives, 2TB is command, spend hours or days to wipe a disk is really necessary?
Actually, according to Peter Gutmann, a Ph.D. in computer science from the University of Auckland, 1 pass of 1s, 0s, or 2 passes of 1s and 0s is enough to secure a hard drive.
Detect magnetic force change in a hard drive is a theory to recover data being overwritten, till now, no report shows someone successfully recovered file using this skill, the skill of computer specialist.
For any modern PRML/EPRML drive, a few passes of random scrubbing is the best you can do. As the paper says, "A good scrubbing with random data will do about as well as can be expected". This was true in 1996, and is still true now.From "Secure Deletion of Data from Magnetic and Solid-State Memory"
Macrorit Data Wiper Related FAQs:
- What is the limitation in Free Edition?
- Can I wipe a Network storage device?
- Difference between Pro +Edition and Unlimited Edition?
- Can Macrorit Data Wiper be used on portable drives?
- Will Macrorit Data Wiper securely erase partitions?
- What are the system requirements for Data Wiper?
- How to setup Macrorit Data Wiper software?
- How to use Macrorit Data Wiper software?
- How long will it take to wipe my drive?
- Can I wipe data from CD?
- Do you have paper certificate or e-certificate?
- Can I wipe the entire drive or partitions of a drive?
- Can I wipe the entire OS drive?
- What is the status of wiped hard drives?
- How to check if I wiped my hard drive successfully?
- How to activate the software?
- I lost my license, what can I do?