About
Author
Jim Tyler
Microsoft MVP
Jim Tyler is a Microsoft MVP and security engineer specializing in hybrid cloud identity, Active Directory, and Microsoft 365 security. He is the creator of Guerrilla, an open source PowerShell security platform that performs comprehensive, fixture-tested audits across Active Directory, Entra ID / M365, and Google Workspace, and compares every run against the last so each report opens with what changed.
Jim is the author of PowerShell for Systems Engineers, a practical guide to using PowerShell for enterprise systems administration, automation, and security operations.
He publishes PowerShell.News, a weekly newsletter covering PowerShell tips, module releases, security advisories, and community highlights.
Project
Guerrilla
Agentless, read-only PowerShell 7 security assessment across three platforms.
Connect
Links
- PowerShell.News: Weekly newsletter
- GitHub: Source code
- LinkedIn: Professional
- YouTube: Video content
Zero analytics. Zero tracking. Zero cookies. This site makes no external requests, so there is nothing to consent to.
Guerrilla is free and open source. · Validation
Guerrilla is written and maintained by Jim Tyler. This copy lives on jimtyler.org; the project also publishes at guerrilla.army.