In the context of cybersecurity, what is 'encryption' used for?

Encryption is a fundamental security measure used to safeguard data by converting it into a format that is unreadable to anyone who does not have access to the proper decryption key. This method is essential for ensuring data confidentiality both when it is stored on devices and during its transmission over networks. By encrypting sensitive information, organizations can protect it from unauthorized access, tampering, and interception, which are critical components of maintaining the integrity and privacy of data.

The use of encryption helps to mitigate risks associated with data breaches and cyber attacks, enabling organizations to comply with regulations and protect their users' personal information. This is particularly important in contexts such as online banking, healthcare, and any sector where sensitive information is handled.

While encryption does play a vital role in mobile and internet security, it does not enhance user experience, streamline data processing, or monitor user activity, which are the functions described in the other choices. Each of those alternatives addresses different aspects of cybersecurity or user interaction that do not align with the primary purpose of encryption.