Patch, update and maintain your security devices ... here's why:

kltaylor Member, Beta Tester Posts: 1,231
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"In a report highlighting the "lessons learned" from a past incident, NERC said hackers repeatedly caused firewalls to reboot for about ten hours, on March 5, 2019.

The incident impacted firewalls deployed at multiple power generation sites operated by a "low-impact" operator and did not cause any disruption in the electric power supply."

It wasn't as bad as it could be, but think about it ... what if it was?!  Something as menial as patching your firewall was the cause to so many people and an amount of panic that could have been avoided.
Regardless of what OS you run daily, please make sure that they are completely up-to-date and running the latest firmware.  Updates are there for a reason, mostly to fix bugs and holes.
"There's a fine line between audacity and idiocy."
-Warden Anastasia Luccio, Captain