How secure are Linux, Window and Mac OS?

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How secure is your favorite operating system? In a time where OS fanatics battle each other on what OS is the best, security is often one of the turning points of discussion. Windows is the cheese amongst the operating systems, filled with holes. Linux is the secure fortress that only the most skilled hackers can take and Mac OS X is the sturdy but not often attacked system. Are these assumptions true?

In this article I will be comparing the vulnerabilities listed on Secunia and assessing how serious they are. I will compare the 2.6 Linux kernel series, Windows XP Professional, Windows Server 2003 (Enterprise edition) and Mac OS X. The reason why I don't just do Linux, Window and Mac is that Microsoft finds it necessary to create a gazillion version of their OS, each with its own security holes. So I will deal with the three most common versions of Microsoft Windows.

Let's find out what operating system is the most secure.

You’ll be pleased to hear that there’s a good reason why it’s so hard to find an anti-spyware program for Linux: the threat from spyware is far smaller when using Linux than when using Windows.

Because of the way Linux works, it’s far harder to create spyware that can get at your personal information.

That’s not to say it can’t happen.

What about Linux spyware?.