There are two overlapping security models:
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WorkGroup-based security model - Also called user-bases security model. Security revolves around a database and is self-contained within the confines of that database. Security is based on users and their permissions. Objects can be assigned different permissions.
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Database Password security model - This simpler model requires setting of a single password that all users must know to open the database. But it can't track individual users' activity in a shared database. But both the models can be used at the same time.
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Encryption is another method provided by Access to secure the database from hackers. But it reduces database performance by 10-15%. Also database is made uncompressible by some programs. Also, the Access Security Wizard helps to secure the databases.
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