Encryption allows the user to make the data incomprehensible without a specific key, certificate, or password.
Encryption is a method of transforming data into a format that only authorized parties can access. Encryption can be used to protect data in transit or at rest from unauthorized access or modification. References:
https://learningnetworkstore.cisco.com/on-demand-e-learning/understanding-cisco-cybersecurity-operations-fund (Module 4, Lesson 4.1.1)