Quote:
Originally Posted by twowheels
Actually, relying on file extensions was always a bad idea and can be a security risk -- it's a holdover from earlier days when computers weren't as fast (easier to determine than actually opening the file to find out) and people weren't as concerned about computer security.
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It's not to do with computer speed, but the design of CP/M in 1976, which the "bought in DOS" by MS had copied. Hiding the ending makes it worse.