Difference Between Windows NT & Windows XP & Unix in Security

Windows NT and XP incorporate security features that simplify network security. Windows NT and XP still include features that would be seen on a single user system. Unix has always been a multi-user system so it includes stronger security measures.

Windows NT

Windows NT added user-level rights and restrictions to determine what tasks users are able to perform. The folder and registry protections included in NT greatly increase system and network security.

Windows XP

Windows XP added encryption, policies and program-level restrictions. Using these added features greatly reduces network vulnerability to viruses, hackers and malware. Individual users in Windows XP still need administrative access to run some programs; this is a security risk.

Unix

Unix has a similar user and role model to restrict access to directories and files. Encryption and sandbox systems to isolate user level programs are tightly integrated, further increasing system and network security.

Considerations

Later versions of Windows have increased security if program compatibility is an issue. Unix provides fully integrated security features and never requires user-level administrative privileges. Unix sandbox features make writing viruses more difficult.

References

• Microsoft Technet: Auditing Windows NT Security Features and Controls
• Microsoft Technet: What's New in Security for Windows XP Professional and Windows XP Home Edition
• University of Illinois: Practical UNIX Security