| http://www.w3.org/ns/prov#value | - If a person with malicious intentions gets in to your database, they can not only read/edit/delete your data (which can be extremely bad if you have sensitive data, such as customer details), but they can change the security so that you (and your program) can not ever get in to the database again, and can do even more extreme things too (such as taking over the entire web site).
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