Security Feature: Allow sanitizing of certain file attachment extensions

If a ticket includes an attachment with .exe or .html files, for example, we need the ability to sanitize these types of files by changing the extension to add ".unsafe" or similar to the file so that they cannot be accidentally executed. This is a security risk that a technician might accidentally run malicious software that was submitted as an attachment. By updating the extension it forces them to consciously make the change before running it, therefore making it harder for malicious software to be ran.

Ideally, I would like to see somewhere in the administrator settings the ability to turn this on or off and to control which extensions would be sanitized.