We take our stuff seriously. A simple file deletion is quite easy to recover.
You might think that the “quick format” does the job. Well, it actually doesn’t. Regarding safe wiping, the regular “slow” formatting is better; however, it is still not what we consider as a complete data deletion. Experts in data recovery are capable of retrieving such data as well.
Secure Wipe actually performs a truly deep formatting of your phone local and external storage. There is not much we can do to speed up data deletion as it is а hardware-dependent process.
Also, keep in mind that if you have selected to use your SD as an Internal storage, the data on it will be erased as well and the wipe process might take longer.