CompTIA CySA+ Practice Test 2025 – The Comprehensive All-in-One Guide to Exam Success!

Encryption is the process of converting information into a coded format to prevent unauthorized access. This technique is widely used in cybersecurity to protect sensitive data from being intercepted or accessed by unintended parties. By transforming plaintext into ciphertext using algorithms and cryptographic keys, the original information becomes unreadable without the appropriate key to decrypt it.

This process is crucial for various applications, including securing communications over the internet, protecting stored data on devices, and ensuring confidentiality in financial transactions. Encryption helps maintain data integrity, confidentiality, and authenticity, crucial components in safeguarding personal and organizational information.

The other options do not accurately describe encryption. Storing information in a cloud service pertains to data management and storage solutions, not the protection of data itself. Creating backup copies of data is related to data availability and recovery but does not involve transforming data into a coded format. Increasing transmission speed over a network focuses on performance rather than security and is unrelated to the concept of encryption.