Event Horizon
Prove your detections survive a SIEM migration.
Generate. Validate. Deliver.
The detection engineering validation platform. Generate MITRE-mapped attack telemetry, deliver it to your SIEMs, and see what carried over, what changed, and the evidence — before a real attack finds the gaps.
// demo
See it run.
One bounded synthetic run, end to end — a plain-English scenario becomes a MITRE-mapped chain and is delivered to Splunk and Elastic. Delivery proves the destinations accepted the telemetry. Native Splunk and Kibana show the separate detection evidence, while the live field-mapping graph explains how one event truth becomes two SIEM vocabularies.
Runs inside your environment. Telemetry never leaves the operator's control.
// the problem
Your migration deck says green. Do your detections?
When teams cut over to a new Security Information and Event Management system, hundreds of detections get ported. Some silently break. Missing fields, wrong parsers, unmapped indexes — the rule looks migrated, but the data it depends on isn't there. You find out the day you needed it to fire.
// what it does
Generate, validate, deliver
Generate
Compose realistic multi-step attack scenarios in plain English. Event Horizon turns your description into a MITRE-mapped chain sourced from real vendor telemetry formats.
Validate
Replay those scenarios into your SIEM and record which detections fired, which missed, and which weren't configured. Every run is deterministic and reproducible.
Deliver
Hardened delivery paths into any SIEM. Export an evidence packet for migration sign-off, audit, or the board — with the proof boundary called out explicitly.
// one truth, two SIEMs
One event truth. Two SIEM vocabularies. Proof from both.
The same synthetic telemetry is delivered to Splunk and Elastic in one demonstrated run. A brute-force source becomes Splunk CIM Authentication.src and Elastic ECS source.ip — and Event Horizon checks the corresponding detection outcomes separately in native Splunk and Kibana.
Where the destination schemas don't line up, the platform keeps the mapping gap visible—even when the rule still fires. The field-mapping graph makes that difference understandable at a glance, so the result includes a diagnosis instead of only a green checkmark.
// the analogy
Train before the incident, not during it
"Pilots train in flight simulators. Cyber defenders shouldn't have to learn in a real breach."
// capabilities
What's inside
- ▸Plain-English scenario builder for multi-step attacks
- ▸MITRE ATT&CK-mapped attack chains, deterministic and reproducible
- ▸Vendor-specific telemetry generation across cloud, endpoint, identity, network, email, web, and infrastructure
- ▸SIEM-agnostic delivery (HEC, S3, and more) — one demonstrated run to Splunk and Elastic side by side
- ▸Cross-SIEM proof: detection outcomes verified separately in native Splunk and Kibana, not just our own scorecard
- ▸Field-mapping graph: see one generated event become Splunk CIM and Elastic ECS, with mapping gaps kept visible even when the detection fires
- ▸Fired / missed / not-configured tracking with roll-up reporting
- ▸Runs inside your environment — your telemetry never leaves your control
// proof boundary
Honest about what evidence proves.
Delivery evidence confirms transport into your SIEM. It does not, by itself, prove downstream parsing, detection, or alerting. Those are recorded separately. That distinction is what makes an Event Horizon evidence packet audit-defensible instead of theater.
// who it's for
Who it's for
- ▸Detection engineers proving new rules fire under real attack conditions
- ▸SecOps teams validating SIEM migrations without waiting for an incident
- ▸MSSP and MDR teams standardizing detection coverage across many customers
Migration confidence you can hand your board — backed by evidence, not a status deck.
Event Horizon runs locally today. Early access is by conversation. New to the practice? Read our adversary emulation guide.
Talk to us// design partner inquiry
Tell us what you need to validate.
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