Yesterday, I have shared on LinkedIn, how you can investigate user's sign in history.
I will share a link to KQL query, which will tell you
- What IP addresses user used in the past 7 days
- If he signed from them in the past 90 days
- Did he sign from the country? Was device managed?
If you are investigating user's activity, it's a great first check you can do and very useful for AI agents during incident response.