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Antivirus: Your computer comes pre-installed with an antivirus, protecting it from various types of malware and cyberattacks...
Shikha Saxena | October 25, 2025 3:15 PM CST

Virus protection has become a crucial requirement for any computer user these days. Whether you use Windows, macOS, or Ubuntu Linux, every platform offers some form of built-in protection. These antiviruses are so advanced that you don't need to install a separate antivirus. Let's explore the built-in antiviruses in different operating systems.

Microsoft Windows comes with Defender Antivirus by default.
Microsoft's Windows operating systems are the most widely used worldwide. The company provides users with Windows Defender Antivirus built into the operating system to protect their systems from viruses. This antivirus system is enabled by default in Windows 10 and Windows 11. It provides protection against viruses, malware, spyware, and phishing attacks. Its biggest advantage is that it doesn't require a separate installation and monitors the system in real time. Microsoft regularly updates new virus definitions through Windows Update, enabling it to detect new threats. Additionally, features like Firewall Protection, SmartScreen Filter, and Ransomware Protection protect against various cyberattacks.

Apple macOS offers the double security of 'XProtect' and 'Gatekeeper'.
Apple Mac computers are already renowned for their security. macOS includes a built-in antivirus system called XProtect, which runs continuously in the background. XProtect detects new malware patterns and blocks or quarantines dangerous files when necessary. Additionally, macOS includes a feature called Gatekeeper, which only allows apps from trusted developers to be installed. This prevents the system from being compromised by unknown or unverified apps. Apple frequently updates its system security to ensure protection against new hacker attacks.

Ubuntu Linux OS offers the protection of AppArmor and ClamAV.
Linux-based systems like Ubuntu are already considered secure because their core architecture is based on an open-source and robust permissions system. However, Ubuntu also includes some built-in security tools. Ubuntu includes a security module called AppArmor, which limits access to system files and applications to prevent programs from taking control of the system. Additionally, ClamAV, a free open-source antivirus, is available in the Ubuntu repositories, which users can activate if desired. It performs tasks such as email scanning, virus detection, and malware removal.

Disclaimer: This content has been sourced and edited from Amar Ujala. While we have made modifications for clarity and presentation, the original content belongs to its respective authors and website. We do not claim ownership of the content.


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