Sentinel to Defender: 1-Week Migration

Migrate Sentinel to the unified Microsoft Defender XDR portal in 7 days. Fixed fee. No coverage gaps. Microsoft's unified security operations platform (Defender XDR with Sentinel) is where Microsoft is investing forward: consolidated investigation, unified queries, and shared automation across endpoints, identity, email, and cloud. Migrating early consolidates your SOC workflows and unlocks the next wave of Defender capabilities. Migrating poorly leaves you with broken detections, lost dashboards, and a SOC that goes dark for days.

Simplicity IT's Sentinel to Defender 1-Week Migration is a fixed-fee engagement designed for regulated mid-market and enterprise teams who need the migration done right, fast, and without surprise scope creep.

What you get Day 1: Discovery + workspace audit. Inventory your Sentinel data connectors, analytics rules, workbooks, hunting queries, and playbooks. Establish the migration baseline. Day 2: Connector inventory + data-source mapping. Map every connected data source to its Defender XDR equivalent. Identify gaps before they bite. Day 3: Detection rule porting. Port KQL analytics rules to the unified query language. Validate against historical alerts so we know the rules still fire. Day 4: Workbook + dashboard migration. Rebuild your investigation workbooks and SOC dashboards in the unified portal. Day 5: Playbook + automation rebuild. Port Logic Apps playbooks, automation rules, and SOAR integrations to the new platform. Day 6: Cutover with parallel-run validation. Run both portals in parallel for 24 hours. Validate every detection fires identically. No surprises. Day 7: Decommission + handover. Decommission redundant resources, deliver runbook documentation, hand over to your SOC team with training. Why Simplicity IT

Regulated-industry experience. Financial services, healthcare, public sector. We know your audit framework before we touch your tenant. Fixed fee. Scope and price are agreed before we start. No hourly billing surprises. Continuous SOC coverage. Parallel-run cutover means your detections never go dark. Microsoft-native engineering. No third-party SOAR lock-in, no abandoned-Splunk-migration scars. Defender XDR + Sentinel + Logic Apps end-to-end. Open-source toolkit + AI-augmented delivery. Our publicly maintained Sentinel to Defender XDR migration toolkit is licensed MIT and contributed back to the Microsoft community. AI augmentation compresses the Day 1 baseline document from a full day of manual KQL queries to about 30 minutes of operator review. Every deliverable is reviewed by a senior security architect before customer handoff. Prerequisites Active Microsoft Sentinel workspace; Microsoft 365 E5 (or equivalent Defender for Endpoint + Defender for Office 365 + Defender for Identity bundle) for the unified portal; Global Administrator or Security Administrator access for the engagement window.

Engagement model Remote-first. On-site available for U.S. East Coast engagements at additional cost. Engagement begins within two business weeks of contract signature. Out-of-scope items (custom KQL beyond ported rules, third-party SIEM extraction, Microsoft 365 license uplift) priced separately at standard professional-services rates.

Ready to migrate? Contact sales@simplicityitinc.com for a scoping call. We’ll confirm fit and lock the engagement window in 30 minutes.