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Enterprise SIEM Migration
Breaking detections. Blowing up your team. Vijilan specializes in structured SIEM migrations that treat migration as an operational program, not a tool swap.
Splunk
Micro Focus ArcSight
IBM QRadar
Rapid7 InsightIDR
Legacy platforms are expensive to run, hard to scale, and brutal to migrate away from — because the real pain isn’t licensing, it’s the data pipeline and the detections.
When companies try to migrate off a legacy SIEM, they usually hit the same walls:

Unknown log coverage — nobody can answer "what do we actually ingest" — leaving teams blind about what needs to move.

Risk of missing incidents during cutover creates paralysis. Teams delay migration because they can't afford visibility gaps.

Hundreds of rules no one trusts or understands. Copy-pasting legacy noise into a new platform recreates the same alert fatigue.

Requirements complicate timelines and costs. Historic data retention can't be ignored but becomes a migration anchor.

The question isn't "can we stand up a new SIEM" — it's "how do we avoid losing visibility while we move?"

Security, IT, app owners, cloud, network — all moving at different speeds with different priorities and risk tolerance.
Standing up a new SIEM is easy. Maintaining detection coverage, investigation continuity, and operational readiness while transitioning is the actual challenge.
We run SIEM migration as a structured, phased program with two core principles
Parallel run validates coverage before cutover. Detection quality improves during migration, not after.
Controlled, phased waves by source criticality. Rollback options at every stage. Proof before commitment.
We decouple telemetry from your legacy SIEM using a modern pipeline to manage data in motion and support safe parallel operation.
Real-time log routing, shaping, and multi-destination support. Reduces SIEM migration friction by eliminating common bottlenecks and enabling seamless parallel runs.
Industry-standard telemetry routing, data shaping, and pipeline control. Commonly used for cloud and platform migrations with advanced filtering and transformation.
Step-by-step structured process with proof points and rollback options at every stage

Discovery & Inventory

Pipeline Design

SIEM Foundation

Ingest in Waves

Detection Migration

Parallel Run

Cutover
Migration is the first win. Operations is the long game. Vijilan managed services keep the new SIEM effective and continuously improving.
Enterprises choose Vijilan when they want real operational excellence, not checkbox compliance

Parallel run proves coverage before cutover. Detection quality improves during migration, not after.

Modern pipeline architecture with Cribl or Falcon Onum — not a bunch of scripts held together with duct tape.

We rebuild what matters with higher fidelity — not copy-paste legacy noise that recreates alert fatigue.

Continuous ingestion operations, detection tuning, and governance ensure your SIEM stays healthy long-term

We know what matters when it's real. Our approach comes from operational experience, not vendor playbooks.
Vijilan migrates enterprises off Splunk, ArcSight, QRadar, and Rapid7 by decoupling telemetry from the legacy platform using Cribl or Falcon Onum, then onboarding, tuning, and operating next-gen SIEM in controlled waves.
Parallel run validates coverage before cutover, and Vijilan managed services keep ingestion, detections, investigations, and reporting continuously healthy.