Cut SIEM Log Volume by 40-80% Without Losing Detection Fidelity
Reduce ingestion cost. Eliminate duplicate and low-value logs. Keep every event your detection rules actually need.
No SIEM replacement. No new agents. No rule rewrites.
You're Paying to Ingest Noise
In large enterprise environments, 18-35% of log volume is duplicate or replayed - sent by agents, retries, and failover mechanisms that nobody filters out. Another 20-40% is low-value debug telemetry that never triggers a detection rule.
Log Processing Before the SIEM
Expanso sits upstream - validating, filtering, and enforcing integrity before ingestion ever happens.
Without Expanso
100% of log volume hits the SIEM
Duplicates indexed and correlated
False positives multiply across rules
Storage tiers balloon month over month
Analysts drowning in noise, missing real threats
With Expanso
40-80% log reduction before indexing
Duplicates removed deterministically
Correlation engines operate on clean logs
False positives decline, storage tiers shrink
Analysts focus on real incidents
Intercept at the edge
Expanso deploys between your log sources and your SIEM. No agent changes, no collector modifications. Logs route through Expanso before ingestion.
Validate and deduplicate
Deterministic deduplication removes replayed events. Timestamp validation corrects ordering. Schema enforcement catches field-level drift before parsers break.
Deliver clean signal
Your SIEM receives validated, deduplicated, time-ordered logs. Correlation engines run faster. Detection rules fire on real events. Storage costs drop.
European Automotive OEM
12 million security events per day across 2.3 million connected vehicles.
The Challenge
A European OEM's vehicle security operations center (VSOC) processed 12 million events per day with 4 analysts. Cloud IDS latency sat at 340ms. Cellular backhaul alone cost $14.2M annually. The team was a month behind on their UN R155 compliance deadline, with cloud infrastructure projected to hit $23M.
The volume problem was not just financial. Correlation engines slowed under load, detection lagged, and analysts spent most of their time filtering noise instead of investigating threats.
What Changed
Expanso deployed at the vehicle edge, validating and deduplicating security telemetry before it reached the cloud VSOC. Pilot launched on 15,000 vehicles in 8 weeks. Detection moved from cloud to edge, cutting latency from 340ms to 0.8ms. The 4-analyst team went from buried in noise to handling 847 confirmed alerts per day. UN R155 compliance was achieved 4 months ahead of deadline.
340ms down to 0.8ms
Without signal loss
Confirmed alerts per day
$14.2M to $840K annually
Year one cost avoidance
UN R155 - pilot in 8 weeks
"Can't Our SIEM Just Filter This?"
SIEM filtering happens after ingestion. By then, you have already paid for indexing. Storage has been consumed. Correlation engines have already processed redundant data.
Expanso enforces integrity before ingestion. That architectural difference changes both economics and accuracy.
SIEM Filtering
Logs → Ingest → Index → Store → Then Filter
You already paid for everything
Expanso
Logs → Filter First → Ingest Clean Data Only
Pay only for what matters
Why Security Teams Deploy Expanso
Predictable SIEM cost control
Stop surprise SIEM bills. Ingestion volume is validated and reduced before it reaches your index, so your costs stay predictable even as log sources grow.
Reduced alert fatigue
When duplicates disappear, analysts see real threats instead of replayed noise. Fewer false positives means faster triage and less burnout.
Faster mean time to resolution
Clean logs mean faster correlation, faster triage, and faster resolution. Detection latency drops from minutes to sub-second when noise is removed upstream.
No SIEM replacement required
Works alongside Splunk, Sentinel, Elastic, Datadog, or any SIEM platform. Deploy without modifying existing agents, collectors, or detection rules.
Reduction without blind spots
Unlike sampling-based tools that gamble on what you might miss, Expanso uses deterministic deduplication and schema-aware filtering. Full detection fidelity at a fraction of the volume.
Lower audit exposure
Validated telemetry with full lineage supports compliance and audit requirements. Every event that reaches your SIEM can be traced to its source.
Stop Paying to Store Redundant Logs
Reduce ingestion. Stabilize correlation. Protect detection fidelity.