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Recent news articles have started to talk about government networks deploying "Albert sensors" (e.g., this article). What is an Albert sensor? And how effective is it?

Going purely from context, it sounds like maybe an Albert sensor is a network tap for a network intrusion system, checking for known signatures of attacks (like Bro/Snort/Zeek). Maybe? I'm speculating wildly. Is it anything like that? What's known about Albert sensors and how effective they are?

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Any chance it's this: https://www.cisecurity.org/services/albert/ ?

It says it's a Suricata based IDS (not clear to me what they add to plain Suricata, maybe this is a subscription to threat signature updates?).

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