The computer is capable of keeping track of files previously stored. If you want the files to be private, then use computer software to wipe deleted files.
Using the computer as a daily part of your business could also mean hundreds or even thousands of diverse information files stored on your hard disk, and part of this might be confidential data. When these bulks of data start taking up space on the hard disk, the next thing you would likely do is to delete files, particularly those that are unnecessary to your records and operation. Deleting them would not assure you of safety and security from hackers and infiltrators who can easily access your old files and risk data security. The best solution in solving this problem is to wipe deleted files because the space occupied by those files you have deleted still exists and has tracks remaining on them.
