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. Reference: https://learningnetworkstore.cisco.com/on-demand-e-learning/understanding-cisco-cybersecurity-operations-fundamentals-cbrops-v1-0/CSCU-LP-CBROPS-V1-028093.html (Module 4, Lesson 4.1.1)