Secure Eraser is described as 'Because it's been deleted from your hard drive, doesn't mean it's gone forever. As long as the information was not overwritten, anyone can restore it at any time. It gets even more complicated, if a computer has been resold or given away' and is a File Shredder in the Security & Privacy category. There are more than 10 alternatives to Secure Eraser for a variety of platforms, including Windows, Mac, Linux, Android and iPhone. The best alternative is Eraser, which is both free and Open Source. Other great apps like Secure Eraser are Permadelete (Free, Open Source), Active@ KillDisk (Freemium), Alternate File Shredder (Free, Open Source) and iShredder (Paid).
Over time, many very private or business-critical files accumulate on a computer. What happens to these files when you no longer need them? Moving to the Recycle Bin is far from enough to really protect your privacy.