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Linux devices are under attack by a never-before-seen worm
(arstechnica.com)
This is a most excellent place for technology news and articles.
What use is an immutable system, if it doesn't already have the data on it that an attacker can steal?
Worms are near impossible to install on an immutable system. You can't just write to /usr/share/bin or some other truck to hide your binary. It doesn't help at all with exfiltration
Your last sentence is exactly my point.