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How does enabling a device's encryption contribute to mobile security?

1. It enhances data processing speed

2. It protects saved data from unauthorized access

3. It prevents battery draining

4. It increases the device's storage capacity

The correct answer is: It protects saved data from unauthorized access

Enabling a device's encryption significantly enhances mobile security by protecting saved data from unauthorized access. When a device is encrypted, the data stored on it is transformed into a format that cannot be easily understood without the proper decryption key. This means that even if a malicious actor gains physical access to the device, they would not be able to read any of the sensitive information without first overcoming the encryption. Encryption serves as a critical defense mechanism against data breaches and identity theft, especially in the event that a device is lost or stolen. It ensures that personal information, including contacts, messages, and files, remain secure and confidential, thus fostering user trust in mobile technology and protecting privacy. The other options relate to different aspects of mobile performance and characteristics. For example, data processing speed can be influenced by numerous factors, including hardware capabilities and software optimizations, but encryption itself does not inherently speed up processing. Battery drain can occur for various reasons related to device operations, but encryption is not designed to conserve battery life. Lastly, encryption does not affect storage capacity; it merely secures the data that is already stored on the device.