[Hardwired8976]

But CrowdStrike is security as well?

[kchr]

Yes, but it's not included in the upstream Ubuntu security repository. In fact, it's not available via any repository AFAIK. It updates itself via fetching new versions from CrowdStrike backend according to your update policy for the host in question. However, as we've learned the past days, that policy does not apply to the "update channel" files...