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A comment on The No More Ransom Project. Parent comment

Re:The No More Ransom Project by user5994461 on Sunday October 30, 2016 @05:07PM (#12832294)
> Imagine if all processes running under the same user shared the same address space!

I recall that's how it worked under windows 95/98 (and the older OS).

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Re:The No More Ransom Project by mschuster91 on Sunday October 30, 2016 @05:19PM (#12832390)
Nope, 95/98 and IIRC 3.11 are true multi-tasking systems, the processes do not share the RAM address space.

However, everything up to, but not including, Windows 2000 (and its predecessor Windows NT) suffers from ALL local users having effectively admin rights on the machines. Not only that the OS doesn't support user permissions, also the underlying file system FAT32 does not store UID/GID or anything, except the file flags "read only"/"system"/"hidden".

Only Windows NT and above (2000, XP, Vista, 7, 8, 10) are secured in this way. Caveat: NT, 2k and XP allowed installations on FAT32, which nullified many protections.

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