What role does encryption play in cybersecurity?

• A. It makes data unreadable to unauthorized users
• B. It improves internet speed
• C. It removes malware from systems
• D. It generates user passwords

Answer: (A)

Encryption plays a critical role in cybersecurity primarily by making data unreadable to unauthorized users. This process involves transforming plaintext information into a coded format, known as ciphertext, which can only be deciphered by those who possess the appropriate decryption key. As a result, even if a malicious actor gains access to encrypted data, they will be unable to interpret or use it without this key, effectively safeguarding sensitive information from theft or unauthorized access.

The effectiveness of encryption is fundamental in various scenarios, such as protecting personal data, securing communication channels (like emails and messages), and ensuring data integrity as well as confidentiality. Organizations rely heavily on encryption protocols to ensure compliance with regulations regarding data protection and to maintain the trust of their users.

The other choices do not align with the primary function of encryption in cybersecurity. Improving internet speed is unrelated to encryption, as encrypting data typically requires additional processing and can momentarily slow down data transmission. Similarly, removing malware involves different security measures, such as antivirus software and intrusion detection systems, rather than encryption. Lastly, while generating user passwords is important for authentication, it does not involve the encrypting of data, which is distinct from how encryption is employed to protect existing data.