[alar44]

Are you suggesting Microsoft patched every vulnerability?

[wnevets]

I'm asking who is looking for and deploying exploits for an OS no one uses.

[slt2021]

Pre-Vista kernel has different completely unsafe architecture. Direct kernel calls, ring0 rce, you wont even notice how you got pwned.

Remember these OS required quite sophisticated antivirus with up to date dbs. Goog luck installing working antivirus on these systems

[alar44]

Plenty of manufacturing still uses outdated OSs because they have to because they vendor no longer exists, doesn't care, or the machine itself is old and no longer supported. Manufacturing plants are also excellent targets.

[wnevets]

But no one is spraying the internet with exploits to catch those manufacturing plants running ancient OSs. Attacks on those places and their ancient OSs would be reserved for targeted attacks.