Which of these is a common strategy used in data loss prevention (DLP)?

Data encryption is a widely recognized strategy in data loss prevention (DLP) as it protects sensitive information by converting it into a format that cannot be easily understood without the appropriate decryption key. This method ensures that even if data is intercepted or accessed by unauthorized individuals, it remains unreadable and secure, thereby significantly reducing the risk of data breaches.

In the context of DLP, encryption serves as a powerful tool to safeguard data both at rest (stored data) and in transit (data being transmitted across networks). By utilizing encryption, organizations can comply with various regulations and standards that require the protection of sensitive data, such as personally identifiable information (PII) or financial records.

The other choices do not align with DLP principles and practices. Increased employee access suggests a greater potential for data exposure and misuse, while decreased monitoring would lead to diminished awareness of data handling activities, increasing the risk of data losses. Unrestricted access to sensitive data would likewise create vulnerabilities, as it would allow unauthorized individuals to access critical information without any safeguards in place. Thus, encryption stands out as a fundamental component of DLP strategies.