You have stored your data on a local hard disk. Which method would secure this data from unauthorized access?

Answers Explanation & Hints:

Data encryption is a method that can secure data stored on a local hard disk from unauthorized access. Encryption involves converting the plain text data into a coded format that can only be accessed by authorized users who have the encryption key. This process makes it difficult for unauthorized users to access the data even if they gain physical access to the hard disk.

Two-factor authentication can provide an additional layer of security by requiring the user to provide a second authentication factor, such as a code generated by a mobile device, in addition to a password. However, it does not protect the data stored on the hard disk itself.

Duplication of the hard drive can provide redundancy and protect against hardware failure, but it does not protect against unauthorized access to the data stored on the hard disk.

Deletion of sensitive files can help protect against unauthorized access to specific data, but it does not provide comprehensive protection for all data stored on the hard disk.

Therefore, data encryption is the most effective method to secure data stored on a local hard disk from unauthorized access.