What are common types of cyber threats?

The selection of viruses, spyware, phishing attacks, and ransomware as common types of cyber threats encompasses a range of harmful activities that target individuals and organizations. Viruses are malicious programs that can replicate themselves and spread to other computers, often causing damage to systems and data. Spyware is designed to secretly gather user information without their knowledge, compromising privacy and security. Phishing attacks typically involve deceptive emails or messages that trick users into providing sensitive information, such as passwords and credit card numbers. Ransomware is particularly damaging, as it encrypts victims' files and demands payment for the decryption key, effectively holding data hostage.

These threats are prevalent in today's digital landscape, highlighting the need for individuals and organizations to be vigilant and proactive in their cybersecurity measures. In contrast, the other options either refer to issues that are not primarily categorized as cyber threats or involve preventive measures rather than threats themselves.