Not As Secure As It Could Be?

I was cleaning off my desktop and ran across this gem that I’d snagged when I was registering my copy of MATLAB:

letters_and_digits_only

Hmm, that’s interesting. Just make potential dictionary attacks a little easier, since the dictionary space is smaller.  (But, then again, who would want to brute-force a Mathworks account anyway?)

On the other hand, perhaps this could be more secure (especially if they increase the required password length), since the elimination of all "strange characters" limits the potential of SQL injection attacks.


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