While a greater number of passes ultimately makes your original data that much harder to recover, a single pass is good enough in most scenarios. For example, the first pass might involve overwriting your data with all 0s, while the next pass will follow that up by overwriting the 0s with all 1s. Some programs take this process even further with multiple passes. By writing a series of binary 1s and 0s in a random fashion, these data wiping solutions effectively render your data unrecoverable. Instead of deleting your data outright, which would result in data that could potentially be recovered, these solutions actually overwrite the entire contents of your drive or data storage device.

Most modern data wiping solutions function in a similar manner. While this renders the file inaccessible by normal means, much of this data can still be recovered through advanced data recovery techniques.īut what happens if you want to erase the contents of a hard drive for good? What if you don't want the data to be recoverable at all? In that case, you'll need to wipe your data completely. Instead, all the pointers and indexes that reference that file are simply removed. Under normal circumstances, data that is deleted isn't actually gone for good. Data wiping is the process of eliminating all of the data stored on a hard drive or other data storage device.

Dod wipe standard