30-60-90 day onboarding project plan
Overview
Sets expectations: stabilize, observe, optimize—not “fix everything week one.”
Days 1–30 (Stabilize)
Credential transition complete, monitoring green on critical paths, backup verification first restore test, security baseline inventory published.
Days 31–60 (Harden)
MFA completion push, Conditional Access tier-1, patch compliance to target, documentation of top 10 apps, QBR deck skeleton.
Days 61–90 (Optimize)
Rightsizing / licensing savings proposals, DR drill tabletop, AD/Azure hygiene backlog groomed, vendor contract renegotiation support if scoped.
Governance
PSA project with milestones and executive steering monthly; RAID log visible to client sponsor.
Metrics
MTTR trend, critical vuln count, backup success—simple line charts beat fifty bullets.
Flexibility
Acquisitions or audits shove phases—re-baseline dates with written change, not silent drift.
Related Articles
EDR deployment checklist for new workstations
## Overview Use this runbook when onboarding a new Windows workstation or re-imaging a device that...
Handling Defender for Business false positives
## Overview False positives waste analyst time and train users to ignore alerts. This article stand...
Application allowlisting with Windows Defender ASR rules
## Overview Attack Surface Reduction (ASR) rules reduce exploit surface by constraining Office macr...