Managed SIEM
SIEM operations handled. Your team focuses on security.
ManySignal manages the full SIEM operations stack — connector setup, parser maintenance, detection tuning, and data source health monitoring. Your team interacts with triaged cases and dashboards, not infrastructure maintenance.
What ManySignal manages
Infrastructure
- Cloud tenancy provisioning and maintenance
- Ingestion pipeline scaling and monitoring
- Data retention policy enforcement
- Backup and disaster recovery
Data Sources
- Initial connector setup for all data sources
- Parser maintenance as log formats change
- Data source health monitoring (green/yellow/red)
- New data source onboarding within 5 business days
Detection
- Pre-built rule library updates as threats evolve
- Custom rule review and optimization
- False positive tuning based on your environment
- Weekly detection coverage report vs. ATT&CK
Operations
- Triage agent configuration and threshold tuning
- Escalation routing and on-call integration setup
- SLA compliance monitoring and reporting
- Monthly posture review with your team
Managed SIEM SLA
Data source ingestion latency
From event emission to searchable in ManySignal
AI triage latency
From detection firing to confidence-scored verdict
Analyst escalation review
Business hours; < 1 hour for HIGH severity 24/7
HIGH severity response initiation
From analyst page to first containment action
New data source onboarding
From request to first events flowing
Platform availability
Excluding scheduled maintenance windows
SLA credits apply for missed commitments. Full SLA terms available in the subscription agreement.
Why managed SIEM
No dedicated SIEM engineer required
ManySignal's team manages connector health, parser updates, and tuning. Your team focuses on the security output.
Detection library maintained automatically
Pre-built rules update as threat techniques evolve — without your team writing or reviewing every update.
SLA-backed triage and response coverage
Contractual SLAs on triage time, escalation review, and response initiation — backed by credits for misses.
New data sources in 5 business days
Submit a connector request and a ManySignal engineer configures, tests, and validates the new data source.
Monthly posture review with ManySignal engineers
Monthly call with the customer engineering team covering coverage gaps, false positive trends, and improvement recommendations.
You own the data and the rules
Unlike MDR services, your data, detection rules, and case history are yours. Export anything at any time.
Comparing managed SIEM solutions
Managed SIEM pricing splits into three families: ingest-metered (Splunk, Sumo, Devo), consumption plus MSSP fee (Sentinel), and flat per-asset (Rapid7, Arctic Wolf, ManySignal). The right choice depends less on sticker price and more on how the vendor treats your data and detection rules.
| Provider | Pricing model | Typical minimum | What's included | Best for |
|---|---|---|---|---|
| Splunk MSSP (partner-delivered) | Ingest-based (per GB/day) + partner services fee | ~$150K/yr platform + $120K/yr services | Splunk Enterprise Security, partner-run tuning, 24/7 monitoring by MSSP analysts | Existing Splunk shops with committed ingest contracts and dedicated MSSP relationship |
| Sumo Logic Cloud SIEM (managed) | Credit-based ingestion + Cloud SIEM add-on | ~$90K/yr platform + services extra | Cloud SIEM, out-of-box rules, self-service tuning; managed via partner network | Cloud-first teams comfortable operating the platform with light partner support |
| Devo Managed Detection | Per GB/day ingestion + managed service tier | ~$180K/yr combined for mid-market baseline | Devo platform, 400-day hot retention, Devo SOC analysts for triage escalations | High-ingest environments that want 400-day hot search plus vendor-run triage |
| Managed Microsoft Sentinel | Azure consumption (per GB) + MSSP flat fee | ~$60K/yr Azure + $80K/yr MSSP services | Sentinel workspace management, KQL rule tuning, Azure Logic Apps SOAR runbooks | Microsoft-first estates where Defender XDR and Entra ID are already primary telemetry |
| Rapid7 MDR (InsightIDR) | Per-asset licensing, MDR service bundle | ~$130K/yr for 1,000 assets bundle | InsightIDR SIEM, Rapid7 SOC analysts 24/7, active response, IR retainer hours | Mid-market teams that want a single-vendor SIEM plus SOC bundle with no split |
| Arctic Wolf Managed SIEM | Per-user / per-sensor subscription | ~$100K/yr entry tier for 500 users | Concierge security engineer, log ingestion, 24/7 monitoring; opaque backend (no direct SIEM access) | Teams wanting a fully outsourced feel with named engineer and no interest in log access |
| ManySignal Managed | Flat per-asset subscription, all-inclusive | ~$85K/yr for 1,000-asset environment | SIEM + UEBA + SOAR + AI triage + 24/7 human escalation, full data & rule ownership | Teams that want managed operations without giving up data ownership or detection control |
Pricing ranges reflect publicly-observed deal sizes for mid-market environments (~1,000 assets, ~50 GB/day) and vary with commit tier, region, and add-on modules. Contact each vendor for a firm quote.
Six phases from legacy SIEM to ManySignal Managed
A managed SIEM migration goes wrong in one of three places: coverage regression, rule loss, or on-call handoff confusion. This playbook is designed to eliminate all three — no silent detection drops, no all-at-once cutover.
Phase 01
Discovery
Two-week engagement to inventory every log source, detection rule, active case, and integration in the existing SIEM. We produce a source-of-truth spreadsheet with parser gaps, duplicate rules, and coverage holes flagged before any migration work begins.
Phase 02
Parallel run
ManySignal ingests the same data as the legacy SIEM for 30 days. Nothing is turned off. Detection output from both systems is compared side-by-side so you can validate coverage parity against real production traffic — not synthetic tests.
Phase 03
Cutover prep
Runbooks, on-call rotations, and escalation paths update to point at ManySignal cases. Ticketing and chat integrations are dual-published. The customer engineering team walks your team through the new triage queue, evidence timeline, and response approval workflow.
Phase 04
Rule migration
Every legacy detection rule is translated, tested against 90 days of historical data in ManySignal, and either promoted, merged with a stronger equivalent, or deprecated with rationale. You get a rule-by-rule migration ledger — no silent drops.
Phase 05
Detection backtest
The full ManySignal detection library plus your migrated rules run against 12 months of your historical telemetry. Any true-positive incidents from that window that were missed by the legacy SIEM surface as backtest findings — a quantified before/after coverage delta.
Phase 06
Full cutover
Legacy SIEM moves to read-only for the contracted retention period. All alerting, triage, response, and reporting run in ManySignal. A 30-day hypercare window with daily standups follows cutover before you drop to steady-state managed cadence.
Typical end-to-end migration timeline: 10–14 weeks from Discovery kickoff to steady-state managed operations.
When managed SIEM is the right call — and when it isn't
Managed SIEM is not the correct answer for every team. Here is how we assess fit on the first call.
Right call if...
- Your security team is 1–4 engineers and cannot staff 24/7
- Your existing SIEM engineer is a single point of failure
- You are paying for a SIEM tool and separately for MSSP triage
- New data source onboarding takes weeks or gets deprioritized
- Detection tuning has stalled — nobody has time to close false positives
- Compliance auditors keep asking for evidence you cannot produce quickly
Wrong call if...
- You have a mature 15+ person SOC with 24/7 shifts already running well
- Regulatory constraints require your own staff to operate every layer
- You are actively building a security product on top of your SIEM data
- You want a black-box outcome and are not willing to co-own tuning decisions
- Your data volume is under 10 GB/day and does not justify a managed tier
- You have committed multi-year prepaid contracts with a legacy vendor that has years left
Managed SIEM — common questions
What does 'managed' mean in the context of ManySignal's managed SIEM?
Managed means ManySignal engineers operate the SIEM infrastructure on your behalf: connector setup and maintenance, parser development for new data sources, detection rule tuning and updates, and proactive monitoring of data source health. You interact with the security operations output — cases, dashboards, and reports — not the infrastructure underneath.
What is included in the SLA?
The managed SIEM SLA covers: data source ingestion latency (events visible in <5 minutes of emission), alert triage time (<60 seconds for AI triage, <4 hours for analyst escalation review), and response initiation time (<15 minutes from case escalation to first containment action for HIGH severity cases).
How does managed SIEM differ from an MDR service?
MDR services typically maintain their own detection infrastructure and share a summary of what they found. Managed SIEM gives you the platform — you own the data, the detection rules, and the case history — with ManySignal's team handling the operations layer. You can bring a custom detection rule; an MDR can't add it to their shared platform.
Can we add our own detection rules to the managed SIEM?
Yes. Your security team can author, review, and deploy custom detection rules alongside ManySignal's pre-built library. ManySignal engineers review custom rules for quality and performance before deployment and notify you of any conflicts with existing coverage.
What reporting does managed SIEM include?
Weekly automated reports cover: alert volume by data source, triage disposition rates, open cases and SLA compliance, and detection coverage by MITRE ATT&CK technique. Monthly reports add MTTR trends, false positive rate trends, and recommended coverage improvements. Quarterly executive briefings are available on request.
Get your managed SIEM proposal
Share your current data source list and team size. We'll produce a managed SIEM proposal with SLA terms, pricing estimate, and onboarding plan in 48 hours.