The security of any operating systems is likely to be a difficult or even contentious issue to examine. The only, truly secure operating systems are those that lack contact to the outside world. As for any other OS they’ll certainly have some sort of susceptibility or weakness that can be exploited.
10. Mac OS X:
This Apple OS knob user authentication and permission better than Microsoft Windows XP, but it still contains remote exploits in its systems. That joined with Apple’s slow reply to many of its security threats. Graphically Mac OS X is really improved and with the support of Apple accessories, it is used by many Mac lovers.
9. Oracle Solaris:
Oracle has delivered Oracle Solaris 11 Express, the latest version of the Solaris operating system the company bought in its acquisition of Sun Microsystems. However, the new “Express” release is aimed at developers as a preview to the full version of Solaris 11. This Oracle Solaris Unix-OS distinction is on the lower notch of this article’s security ranking because it’s not naturally security-focused.
8. HP-UX 11i:
HP-UX is not most commercially popular OS in the market today; this Unix-based Hewlett-Packard OS has been included in this list because of its better-quality security policies to several more popular operating systems (Solaris, Mac OS X, Windows and Linux).
7. Windows XP:
Windows XP is the Microsoft’s greatest and most long-running releases (because of Vista’s malfunction to support previous versions software and drivers). With latest updates and patches Windows XP become pretty much secure. Disastrously, it’s also one of the most non-secure operating systems of all time as well (before the launch of Service Pack 2 and Service Pack 3). Because it runs a lot of network services & allows users to access full rights by default, it also gets hacked and breached on a nigh-daily basis by default as well.
. Windows Server 2003:
Microsoft Windows Server 2003 (with Service Pack 2) provides new proactive security technologies to help defend against viruses, worms, and attackers. Windows Server 2003 is more secure than Windows XP. It features competent security improvements like default disabling of vulnerable services and a built-in firewall. With Service Pack 02 and security patches Windows Server 2003 become even more secure than its initial launch.
5. Windows Vista:
There are a number of security and safety features new to Windows Vista, most of which are not available in any prior Windows operating systems release. Secure Desktop allows only highest privilege System applications to run; no user mode application can present its dialog boxes on that desktop, so any prompt for elevation consent can be safely assumed to be genuine. A new management console snap-in named Windows Firewall with Advanced Security which provides access to many advanced options, including IPSec configuration, and enables remote administration.
4. Windows Server 2008:
Windows Server 2008 first server product built from scratch since the advent Trustworthy Computing at Microsoft. Bill Laing, general manager of the Windows Server Division at Microsoft, says security in this product is “unprecedented”. Windows Server has improved backup and recovery, user account control, web server (IIS) role, and server role security configuration.
3. Windows 7:
Windows 7 the newest operating system from Microsoft, simplifies computer security, making it easier for you to reduce the risk of damage caused by viruses, spyware and other malware. Windows 7 also features an improved backup solution to help keep your information safe, and its improved parental controls help you protect your family. Windows 7 makes it easier and less intrusive to run your computer as a standard user instead of as an administrator. Windows Vista introduced User Account Control, a feature that warned you when a program wanted to make a change on your computer. Windows 7 improves on this feature, which means you’ll get the same level of protection, but with fewer messages than before.
2. Linux:
Linux can be installed on a wide variety of computer hardware, ranging from mobile phones, tablet computers and video game consoles, to mainframes and supercomputers. Linux is a higher secure operating system. It has the ability to be customized up to extremely secure level. Most of the Linux distributions are open source. Linux has an extraordinary patching policy. Netcraft reported that eight of the ten most reliable internet hosting companies ran Linux distributions on their web servers.
1. OpenBSD:
OpenBSD is the most secure general purpose operating system. One of the goals of the OpenBSD project is the integration of facilities and software for strong cryptography into the core operating system. To this end, a number of low-level features are provided, including a source of strong pseudo random numbers. OpenBSD integrates several technologies to help protect the operating system from attacks such as buffer overflows or integer overflows. The fact that it suffered only two remote attacks in the last decade serves as firm substantiation of its strict security and auditing policy.
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