When managing a customer database, what practice should be implemented to protect their personal information from unauthorized access?
Making sure the server room is clean and dust-free
Regularly changing the network cables to ensure a stable connection
Encrypting the data at rest
Using a very strong password for the database administrator account
Encrypting data adds a layer of security that ensures that even if the data is accessed by an unauthorized user, it cannot be easily understood without the appropriate decryption key. Other methods, like keeping the server room clean or using strong passwords, contribute to security but on their own do not protect the data at rest from being accessed and understood.
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