Visit complete Cyber Security roadmap

← Back to Topics List

Operating Systems

An operating system (OS) is a crucial component of a computer system as it manages and controls both the hardware and software resources. It provides a user-friendly interface and ensures the seamless functioning of the various applications installed on the computer.

In the context of cybersecurity, selection and proper maintenance of an operating system is paramount. This section will discuss the three major operating systems: Windows, macOS, and Linux, along with security considerations.


Microsoft Windows is ubiquitous amongst desktop and laptop users, making it a primary target for cybercriminals. Attackers often focus on finding and exploiting vulnerabilities within Windows due to its extensive user-base. That said, Windows continues to enhance its built-in security features with updates and patches. Key features include:

  • Windows Defender: An antivirus program that detects and removes malware.
  • Windows Firewall: Monitors and controls incoming and outgoing network traffic.
  • BitLocker: A full disk encryption feature for securing data.

As a Windows user, keeping your system up-to-date and using additional security tools such as anti-malware software is vital.


The macOS, Apple’s operating system for Macintosh computers, holds a reputation for strong security. Apple designed macOS with several built-in features to protect user privacy and data:

  • Gatekeeper: Ensures downloaded apps originate from trusted sources.
  • FileVault 2: Offers full-disk encryption for data protection.
  • XProtect: An antivirus tool that scans newly installed apps for malware.

Despite macOS’s sound security measures, no operating system is completely immune to threats. Running reputable security software and keeping your macOS updated is essential to safeguard against potential cyberattacks.


Linux is an open-source operating system considered to be more secure than its commercial counterparts. Linux uses a multi-user environment, mitigating the impact of potential threats by separating user information and privileges. Other notable features include:

  • Software Repositories: Official software repositories maintained by Linux distributions provide trusted sources for software installation.
  • SELinux (Security-Enhanced Linux): A security architecture that allows administrators to control system access.
  • System/package updates: Regular updates offered by distributions hold essential security fixes.

Although Linux distributions are less targeted by cybercriminals, it is vital to follow security best practices, such as keeping your system updated and employing security tools like antivirus software and firewalls.

Remember, the security of your operating system relies on timely updates, proper configuration, and the use of appropriate security tools. Stay vigilant and informed to ensure your system remains secure against ever-evolving cyber threats.

Found any mistakes? Help us improve by updating the file here..

Community is the 6th most starred project on GitHub and is visited by hundreds of thousands of developers every month.

Roadmaps Best Practices Guides Videos Store YouTube by Kamran Ahmed

Community created roadmaps, articles, resources and journeys to help you choose your path and grow in your career.

© · FAQs · Terms · Privacy


The leading DevOps resource for Kubernetes, cloud-native computing, and the latest in at-scale development, deployment, and management.