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Enterprise SIEM Migration

Move Off Legacy SIEMs Without Losing Visibility

Breaking detections. Blowing up your team. Vijilan specializes in structured SIEM migrations that treat migration as an operational program, not a tool swap.

We Migrate From

Splunk

Micro Focus ArcSight

IBM QRadar

Rapid7 InsightIDR

The Enterprise Migration Problem

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:

Data Pipeline Lock-In

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

Dual Run Fear

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

Detection Debt

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

Retention & Compliance

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

Confirm & Close

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

Multiple Teams

Security, IT, app owners, cloud, network — all moving at different speeds with different priorities and risk tolerance.

The Biggest Risk is Losing Visibility During the Move

Standing up a new SIEM is easy. Maintaining detection coverage, investigation continuity, and operational readiness while transitioning is the actual challenge.

Vijilan's Migration Approach

We run SIEM migration as a structured, phased program with two core principles

01

No Visibility Loss

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

02

No Big Bang Cutover

Controlled, phased waves by source criticality. Rollback options at every stage. Proof before commitment.

Modern Telemetry Pipeline Strategy

We decouple telemetry from your legacy SIEM using a modern pipeline to manage data in motion and support safe parallel operation.

Falcon Onum Pipeline

Real-time log routing, shaping, and multi-destination support. Reduces SIEM migration friction by eliminating common bottlenecks and enabling seamless parallel runs.

Cribl Pipeline

Industry-standard telemetry routing, data shaping, and pipeline control. Commonly used for cloud and platform migrations with advanced filtering and transformation.

Vijilan SIEM Migration Program

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

After Migration: Vijilan Managed Services

Migration is the first win. Operations is the long game. Vijilan managed services keep the new SIEM effective and continuously improving.

01

Ingestion Operations

02

Detection Engineering & Tuning

03

Investigation & Escalation Support

04

Governance & Reporting

Why Enterprises Use Vijilan for SIEM Migration

Enterprises choose Vijilan when they want real operational excellence, not checkbox compliance

A Safe Migration Without Visibility Loss

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

Real Telemetry Pipeline Strategy

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

Detections That Improve After Migration

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

An Operating Model That Prevents SIEM Shelfware

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

A Team That Has Lived in Incidents

We know what matters when it's real. Our approach comes from operational experience, not vendor playbooks.

Replace Legacy SIEM Without Losing Visibility

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.