Jim Tyler
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Guides

K-12 security hardening playbooks

Three plain-language checklists written for school IT teams on school budgets. Every item says what to set, why it matters, where the setting lives, and what it costs or which scanner catches it. Presented at MAEDS 2026; free to use, share and print.

K-12 hardening playbook · 134 items

Active Directory Security

A plain-language Active Directory hardening checklist for K-12 districts: privileged account tiering, Protected Users, NTLM and LDAP hardening, Group Policy and SYSVOL, Tier 0 backups, LAPS, detection, and which free scanner catches each item.

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K-12 hardening playbook · 156 items

Google Workspace Security

A Google Workspace for Education hardening checklist for school districts: 2-Step Verification, Context-Aware Access, device approvals, DLP, domain-wide delegation audits, student misuse controls, turning off AI for student OUs, and what each setting costs.

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K-12 Chromebook hardening playbook · 61 items

You Shall Not Pass

How to keep proxy sites, filter evasion, cheating surfaces and AI off managed school Chromebooks: Jim's 10 quick hits, Chrome and Admin console settings with license and effort, a hostname blocklist, and the free You Shall Not Pass extension.

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Guerrilla: the free scanner behind the AD checks TeacherMagic.org: home of You Shall Not Pass Walkthroughs on YouTube
Jim Tyler

K-12 technology leader, Chief Technology Officer at Model Communicator, and 2x Microsoft MVP. Free tools and plain-language security playbooks for schools. Watervliet, Michigan.

Guides

  • Active Directory Security
  • Google Workspace Security
  • Chromebook Hardening (YSNP)
  • All guides

Projects

  • Model Communicator
  • TeacherMagic.org
  • PowerShell.News
  • PowerShellEngineer.com
  • Guerrilla

Connect

  • YouTube · K12Engineer
  • GitHub
  • LinkedIn
  • Email
© 2026 Jim TylerGuides are free to use and share. Paths and policy names move between releases; if one is wrong, tell me.