Black listing is never secure. White listing is. Sadly some really smart person decided it was a good idea to store pictures and SSH keys within the same directory tree.

> Sadly some really smart person decided it was a good idea to store pictures and SSH keys within the same directory tree.

~/Pictures and ~/.ssh are as far apart as they can be while staying in the user's home directory. I guess you could stick stuff in... /var or something, but that seems worse overall.