Simplicity IT Professional Service | Six-week implementation

Microsoft Sentinel SIEM Modernization: 6-Week Implementation

Security operations teams: turn an agreed Microsoft Sentinel backlog into tested changes for an approved release.

A Simplicity IT engineer will call you shortly.

Request a call

Service estimate

Estimated service fee: USD 45,000. Final scope and fees are confirmed in the statement of work before delivery. Microsoft licenses and consumption are separate.

What this implementation gives you

  • A governed modernization foundation for one primary Microsoft Sentinel workspace.
  • Up to eight prioritized data connectors, 25 tested analytics rules, and five governed automation rules or playbooks.
  • Microsoft Defender portal readiness, one controlled pilot, and one customer-approved production release.
  • Acceptance evidence, as-built configuration, operating runbooks, and a prioritized 90-day backlog.

Scope and boundaries

Six weeks for one workspace, up to eight connectors, 25 analytics rules and five playbooks or automation rules, with pilot validation and the approved production release. Defender portal readiness and the transition operating map are included.

A separate portal-transition engagement is not charged for the same workspace and deliverables. Ongoing SOC operation and a dedicated Security Copilot implementation require separate scope.

  • The public scope covers one primary workspace, up to eight connectors, 25 analytics rules, five automation rules or playbooks, one pilot, and one production release.
  • Additional workspaces, custom connectors, large-scale historical data migration, and third-party SIEM contract termination are excluded.
  • 24x7 managed detection and response, live incident response, licenses, Azure consumption, and custom software development require separate scope.
  • Failed or unresolved work packages remain outside the production release and enter the backlog.

Your approval before production changes

A named customer owner approves each production change or cutover against the agreed scope, test evidence, rollback path, operating owner, and expected cost before it proceeds.

How the engagement runs

  1. Weeks 1 and 2: Baseline and connect

    Confirm architecture, access, data economics, acceptance criteria, then onboard and validate the prioritized connectors.

  2. Weeks 3 and 4: Build detections and automation

    Implement and test the approved detection wave, then develop the automation package with notify-only controls and rollback evidence.

  3. Week 5: Validate the pilot

    Validate Microsoft Defender portal operations, run the approved pilot, and resolve in-scope release blockers.

  4. Week 6: Release and hand off

    Complete the approved production release, user acceptance testing, as-built evidence, operating runbooks, and the 90-day backlog.

Sample implementation artifacts

These illustrative examples show the deliverables you can expect. They use synthetic data and do not depict customer environments.

Synthetic Microsoft Sentinel modernization control board.
Modernization control board
Synthetic Microsoft Sentinel data connector deployment record.
Data connector deployment record
Synthetic analytics rule release matrix.
Analytics rule release matrix
Synthetic automation playbook approval runbook.
Automation approval runbook
Synthetic production acceptance evidence register.
Production acceptance evidence

Evidence to decision flow

Context approved

The customer confirms scope, access, acceptance criteria, change windows, and named approvers before build activity begins.

Controlled delivery

Simplicity IT builds and tests only the accepted work packages in the customer-owned environment, with evidence recorded at each checkpoint.

Your decision

A named customer owner reviews the exact change, test result, rollback path, operating owner, and cost impact before any production effect or cutover.

Evidence retained

The as-built record, acceptance evidence, rollback status, decision log, and operational handoff are retained according to the customer agreement.

Microsoft technologies in scope

  • Microsoft Sentinel
  • Microsoft Defender XDR
  • Azure Lighthouse
  • Azure Monitor

Plan your Marketplace purchase

Request a Microsoft Marketplace private offer for this scope. Before ordering, we will confirm the supported transaction route, agreed terms and availability. Microsoft licenses and consumption are separate. Professional-service fees do not count toward MACC.

Bring the relevant inventory, owners and priorities to a scoping conversation. Request the applicable service terms before committing; support scope is fixed in the accepted agreement.

Request a private offer