I'd like to add to this conversation, as a side note, that a new type of security has (fairly) recently emerged: legal security. "It's illegal to break in, so we don't need security". Quite common in convenience stores, people's homes and now, the Internet. Some will find that this sort of security sucks. That it doesn't protect them very well. They won't care though, because even though the window was open, no one should've entered.
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