Which of the following is NOT a characteristic of ransomware?

The correct answer highlights a fundamental characteristic that distinguishes ransomware from other types of malware. Ransomware is specifically designed to restrict access to a user’s files by encrypting them, which leads to the subsequent demand for a ransom in exchange for the decryption key. This functionality is integral to its purpose: to extort money from the victim by rendering their data inaccessible.

In contrast, the characteristic stating that users can access their files at all times contradicts the very essence of what ransomware does. If users can access their files freely, then the ransomware has not successfully performed its action of enforcing access restrictions, which is a defining feature of this type of malware. Therefore, the correct response reflects a misunderstanding of how ransomware operates, as it fundamentally denies access rather than allowing it.