Home Security: Deadbolt upgrade?

No deadbolts on my doors. It is a little expensive, but living 1 block from the ocean we have double pane hurricane impact windows and exterior French doors. When we lock a door, the upper and lower pins automatically engage. In addition, there are four 1/4" thick “hooks” that also automatically lock into the jamb as pictured below. The easiest way to break in is to go through an exterior wall.

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