Migrate to
Falcon Next-Gen SIEM.
Vijilan's managed migration program moves you from Microsoft Sentinel to CrowdStrike Falcon Next-Gen SIEM with zero visibility loss. Escape ingestion-based pricing. Deploy 150× faster search. Keep 24/7 SOC coverage throughout.
Microsoft Sentinel
Per-GB ingestion · Azure-native · KQL
CrowdStrike Falcon Next-Gen SIEM
Index-free · 150× faster · Native XDR · Charlotte AI
Delivered as NextDefend™ — managed Falcon Next-Gen SIEMSentinel is a capable cloud-native SIEM and it is genuinely strong inside a Microsoft-first estate. The migrations we see are driven by two things: ingestion cost that scales with every improvement in coverage, and telemetry from outside the Microsoft ecosystem that bills at full Log Analytics rates.
Cost scales with your coverage
Ingestion is billed per gigabyte into Log Analytics. Every source you add to improve visibility raises the bill, which quietly rewards collecting less than you should. Falcon Next-Gen SIEM is index-free, so retention stops being the thing that decides what you collect.
Non-Microsoft telemetry is the expensive part
Firewalls, VPN concentrators, SaaS applications and non-Microsoft identity or cloud sources bill at full rates with none of the first-party benefits. In a mixed estate that is usually most of the volume.
KQL fluency is a staffing dependency
Detection engineering and investigation both assume somebody fluent in KQL. That is a real and reasonably scarce skill, and it is a hiring problem rather than a licensing one.
The SIEM does not bring the endpoint
Sentinel is the analytics layer; endpoint detection comes from Defender or a third party you integrate. Falcon Next-Gen SIEM ships with Falcon Insight XDR integrated rather than connected.
Operating cost is unchanged by any discount
Ingestion grants and commitment tiers move the license line. They do nothing about detection engineering, tuning and 24/7 triage, which for most teams is the larger number.
One vendor for data and response
Where the SIEM, the endpoint, identity and the SOAR are one platform, the correlation is native rather than assembled, and there is one place to ask why something was missed.
Microsoft Sentinel vs. Falcon Next-Gen SIEM.
| Capability | Microsoft Sentinel | Vijilan + Falcon NG-SIEM |
|---|---|---|
| Pricing Model | Per-GB ingestion into Log Analytics | Predictable, index-free pricing |
| Non-Microsoft sources | Billed at full rates | Same pricing as any other source |
| Query language | KQL | Falcon query language plus Charlotte AI assistance |
| Native XDR | Via Defender integration | Falcon Insight XDR integrated |
| Identity Protection | Entra ID Protection, separately licensed | Falcon Next-Gen Identity Security native |
| SOAR | Logic Apps playbooks | Falcon Fusion SOAR (native) |
| Retention economics | Tiered, priced by volume and duration | Index-free; long retention does not reprice the deal |
| Best fit | Microsoft-first estates with KQL skills in-house | Mixed estates, or teams without a staffed SOC |
| Managed Service | DIY or third-party | Vijilan 24/7 managed SOC |
A 7-step Microsoft Sentinel migration.
Zero visibility loss. Parallel-run validation. Rollback at every stage.
- 01
Discovery & Audit
Complete inventory of source data sources, saved searches, dashboards, alerts, compliance reports and custom apps. Map dependencies and identify optimization opportunities.
- 02
Architecture Design
Design target Falcon Next-Gen SIEM topology with a Falcon Onum or Cribl pipeline. Define parallel-run infrastructure, data routing and retention policies. Size for current and projected data volumes.
- 03
Pipeline Deployment
Deploy Cribl or Falcon Onum for dual-write. Data flows to both the old SIEM and Falcon Next-Gen SIEM simultaneously. No source reconfiguration required for most data types.
- 04
Detection Migration
Convert detection rules, correlation searches and scheduled reports to Falcon Next-Gen SIEM equivalents. Improve signal-to-noise ratio during conversion. Validate against historical incident data.
- 05
Parallel Run & Validation
Both SIEMs active and monitored 24/7 by the Vijilan SOC. Compare alerts, dashboard outputs and compliance reports side-by-side. Tune until output parity is confirmed.
- 06
Phased Cutover
Source-by-source cutover with rollback capability at every stage. High-priority sources first, then expand. The legacy SIEM remains accessible throughout for historical queries.
- 07
Optimization & Managed Ops
Tune detections, build new Falcon Next-Gen SIEM dashboards, enable Charlotte AI investigation workflows and transition to Vijilan 24/7 managed SOC operations.
The destination platform is licensed for the engagement.
Through our CrowdStrike partner licensing we can stand Falcon Next-Gen SIEM up in your environment at no license cost for a defined sixty day engagement window. On a mid-sized estate that normally covers discovery, pipeline deployment, detection conversion and the parallel run, which is the stretch where you are paying for two platforms at once and feeling it.
Sixty days is usually not the whole migration, and we would rather tell you that now than at day sixty-one. When the window ends the licensing either converts to a normal subscription or the tooling deprovisions. We would like it to convert; that is the honest reason this exists. You are under no obligation, and the audit, the architecture design and the converted detection logic are yours either way.
Common questions.
Is Microsoft Sentinel a bad SIEM?+
No, and we would not make that argument. In a Microsoft-first estate with KQL fluency on the team, Sentinel is a strong and well-integrated choice. The migrations we run are usually driven by a mixed estate where non-Microsoft telemetry dominates the bill, or by a team that does not have a staffed SOC and is paying for a platform it cannot fully operate.
Do we have to leave Microsoft Defender behind?+
No. ThreatRespond™ is vendor-agnostic and wraps the SOC around Defender as the response plane, so a migration off Sentinel does not have to mean a migration off Defender. Those are two separate decisions and they are frequently made at different times.
Can our KQL detections be converted?+
Yes. The Discovery and Audit phase inventories your analytics rules, hunting queries and workbooks, and we convert them rather than asking you to rewrite them. What does not convert cleanly is identified early rather than discovered at cutover.
What happens to the data already in Log Analytics?+
It stays queryable there during the parallel run, and after cutover you retire the workspace on your own timeline. Historical data is not migrated by default because it is rarely worth what it costs; where a compliance requirement needs it, that is scoped explicitly.
How long does a Sentinel migration take?+
Typically 8 to 16 weeks with parallel-run validation, driven mostly by the number of data sources and custom analytics rules rather than by data volume.
Will we lose visibility during the migration?+
No. Both platforms stay live through the parallel run and the Vijilan SOC monitors both until cutover is confirmed. Rollback is available at every stage.
Do we have to buy Falcon Next-Gen SIEM before the migration starts?+
No. Through our CrowdStrike partner licensing we can stand the destination platform up in your environment at no license cost for a defined sixty day engagement window, which is normally enough to carry discovery, pipeline deployment, detection conversion and the parallel run. It is usually not the entire migration, and we would rather say so now than at day sixty-one. At the end of the window the licensing either converts to a normal subscription or the tooling deprovisions. We would obviously like it to convert, and you are under no obligation. What you keep regardless is the audit, the architecture design and the converted detection logic.
"As our business grew, we wanted to modernize our SIEM foundation and extend SOC coverage without changing who we are as a security organization. Our goal was to evolve thoughtfully, not reactively."
The Microsoft Sentinel-vs-Falcon Next-Gen SIEM breakdown and the SIEM-migration buyer guide, free to download.
Ready to leave
Microsoft Sentinel behind?
Schedule a free Microsoft Sentinel Migration Assessment. We'll audit your environment, map your detection rules and deliver a fixed-scope migration plan, typically within 5 business days.