What is essential for protecting computing devices and systems?

Regular software updates are crucial for protecting computing devices and systems because they often contain patches that fix security vulnerabilities. These updates help keep systems resilient against the latest threats by addressing potential exploits that could be taken advantage of by malicious actors.

Using complex passwords is another essential measure for protection. Strong, unique passwords significantly reduce the risk of unauthorized access. They impede attackers' ability to gain control over accounts and devices by making brute-force attacks and password guessing more difficult.

Selecting 'all of the above' encompasses both of these critical strategies, reflecting a comprehensive approach to cybersecurity. Reliance on just antivirus software is insufficient because while antivirus can help detect and remove malware, it does not safeguard against all types of threats, such as phishing scams or vulnerabilities in outdated software.

Combining regular updates and complex passwords alongside antivirus software forms a robust defense strategy that is necessary for effective protection against various cyber threats.