What is the primary function of encryption in data security?

The primary function of encryption in data security is to make data unreadable to unauthorized users. This is achieved through algorithms that transform readable information into an encoded format that can only be reverted back to its original state by someone who possesses the correct decryption key. This process is vital for protecting sensitive information from theft, unauthorized access, and data breaches, ensuring that even if data is intercepted or accessed without permission, it remains secure and unreadable to the intruder.

Encryption plays a critical role in various security protocols, including securing communications over networks, protecting data at rest, and safeguarding personal and financial information. By ensuring that only authorized users have the ability to access and interpret sensitive data, encryption provides a robust layer of security that forms a cornerstone of modern data protection strategies.