3 Ways to Permanently and Securely Delete Files and Directories??? in LinuxJan 10, 2017, 12:00 (0 Talkback[s])
(Other stories by Ravi Saive)
Assuming a file contains classified or secret content such as usernames and passwords of a security system, an attacker with the necessary knowledge and skills can easily recover a deleted copy of the file and access these user credentials (and you can probably guess the aftermath of such as scenario).
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