this post was submitted on 25 Sep 2024
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Keep Tier-One Applications Out of Virtual Environments (www.darkreading.com)
submitted 1 year ago* (last edited 1 year ago) by redfox@infosec.pub to c/technology@lemmy.world
30 comments fedilink hide all child comments
 

After reading this article, I had a few dissenting thoughts, maybe someone will provide their perspective?

The article suggests not running critical workloads virtually based on a failure scenario of the hosting environment (such as ransomware on hypervisor).

That does allow using the 'all your eggs in one basket' phrase, so I agree that running at least one instance of a service physically could be justified, but threat actors will be trying to time execution of attacks against both if possible. Adding complexity works both ways here.

I don't really agree with the comments about not patching however. The premise that the physical workload or instance would be patched or updated more than the virtual one seems unrelated. A hesitance to patch systems is more about up time vs downtime vs breaking vs risk in my opinion.

Is your organization running critical workloads virtual like anything else, combination physical and virtual, or combination of all previous plus cloud solutions (off prem)?

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[–] superkret@feddit.org 14 points 1 year ago* (last edited 1 year ago) (10 children)

I work for a newspaper. It was published without fail every single day since 1945 (when my country was still basically just rubble, deservedly).
So even when all our systems are encrypted by ransomware, the newspaper MUST BE ABLE TO BE PRINTED as a matter of principle.
We run all our systems virtualized, because everything else would be unmaintainable and it's a 24/7 operation.

But we also have a copy of the most essential systems running on bare metal, completely air-gapped from everything else, and the internet.
Even I as the admin can't access them remotely in any way. If I want to, I have to walk over to another building.

In case of a ransomware attack, the core team meets in a room with only internal wifi, and is given emergency laptops from storage with our software preinstalled. They produce the files for the paper, save them on a USB stick, and deliver that to the printing press.

[–] 0x0@programming.dev 3 points 1 year ago (1 children)

save them on a USB stick

...which is also kept with the air-gaped system and tossed once used, i assume...

[–] superkret@feddit.org 4 points 1 year ago

There's several for redundancy, in their original packaging, locked in a safe, and replaced yearly.

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