[Gideon7]

UNIX bases OSes are very difficult to hack. There are no viruses, as that concept doesn’t work in Unix. Without the root passwd there is very little distruction that can take place. Believe me.

No. Linux/UNIX can be hacked just like any other OS.

A hacker can modify an unprotected executable file, or a kernel load module, or even the disk sectors of an unprotected /dev/sda physical device. It takes only one mistake in securing a single file to blow up Linux completely.

For all the complaints about compatibility in Windows Vista/Win7, it does have extra security against those kinds of errors. x64 device drivers must be digitally signed with a Class 3 VeriSign Authenticode Certificate to load. Mandatory Integrity levels are enforced everywhere: all code runs in separate sandboxes based on the security level (Low, Medium, High, System). This is similar to TCB Orange Book used by the military for mandatory security levels (Unclassified, Secret, Top Secret, etc). Files in the TCB are owned by TrustedInstaller and cannot be modified even by super-users (Administrators).

Linux/UNIX has a ways to go to catch up to Win7 in terms of security.

[central_va]

A hacker can modify an unprotected executable file, or a kernel load module, or even the disk sectors of an unprotected /dev/sda physical device. It takes only one mistake in securing a single file to blow up Linux completely.

Spreading false information around pure bs. Without root authority any hacked executable will not have the authority to do an damage. You think you understand Unix but clearly you don't. The Unix OS will control the maliciousness, contain it. It was DESIGNED that way.

unprotected /dev/sda physical device.

What? How is that going to affect anything but that device? /dev is owned by root.