Solutions · Compliance

Find sensitive data in your telemetry. Stop it from spreading.

Connect Tero read-only and see where sensitive data is exposed in minutes. Tero identifies the source, owner, and destinations, then contains the exposure with safe redaction policies before it reaches more systems.

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Find exposures in minutes
Masked evidence behind every finding
Trace source, owner, and destination
Contain with reversible policies

Point of view

Sensitive data does not stay put.

Sensitive data usually enters telemetry innocently. Someone logs a payload while debugging, an error handler includes headers, or a service serializes an object.

But telemetry travels through agents, pipelines, vendors, archives, security tools, and internal exports. By the time someone discovers the field, the problem is no longer just what matched. It is where the data came from, where it went, who owns it, and how to stop more from spreading.

Tero starts with what actually landed. It finds the exposure, shows masked evidence and lineage, and turns that downstream truth into targeted control where telemetry flows.

Find what leaked. Understand where it spread. Contain it immediately. Keep the evidence attached to the permanent fix.

Ben Johnson

Founder, Tero
Creator of Vector

01 · Tero Index

Find sensitive data across your telemetry in minutes.

Connect Tero read-only. It builds maintained context over field shapes, masked examples, destinations, service ownership, volume, severity, and links back to raw records.

You see what sensitive data is present, which service emits it, where it is being sent, who owns it, and how severe the exposure is.

Nothing changes while Tero analyzes the environment. Sensitive data has shape, and different shapes carry different risk and require different handling.

Sensitive data · masked examples18 services

Payment datapan=[.... .... .... 4242]HIGH

Identity data[email protected]MEDIUM

Regulated identifiersssn=...-..-8812HIGH

Health datadiagnosis=[........]HIGH

Secretsauthorization: Bearer eyJ......CRITICAL

Risky payloadsbody={ 2.4 KB serialized object }MEDIUM

02 · Tero Issues

Every exposure comes with evidence.

Each issue shows the field, masked examples, affected service, destinations, volume, owner, severity, raw evidence, and recommended action.

Your team can review what was found, where it went, why it matters, and what should happen next without re-exposing the sensitive value.

03 · Tero Actions

Contain exposure with safe, reversible policies.

The permanent fix may be a code change, but the exposure needs containment before that work lands. Tero applies a focused redaction policy where telemetry already flows, with review, ownership, lineage, and measurement attached.

Contain it immediately, then send the complete issue context to the owning team for the permanent code fix.

Now officially part of OpenTelemetry ↗

Policy spec ↗Policy examples ↗How policies work ↗

checkout-api / redact-auth-header.yamlRedact

id: POL-1059
name: "Redact auth header from checkout logs"
description: "Created from ISS-2. Contain now, fix in code."
log:
  match:
    - resource_attribute: [service.name]
      exact: checkout-api
    - log_field: headers.authorization
      exists: true
  redact:
    - log_field: headers.authorization
      replacement: "[REDACTED]"
labels:
  - key: issue_id
    value: ISS-2

Policy runtime

Enforce redaction where your telemetry already flows.

The open-source Tero runtime runs inside the collector, agent, or pipeline you already use. It redacts sensitive data before it reaches more systems and reports matches and measured impact back to Tero. No new data plane. No telemetry routed through us.

Benchmarks ↗Distributions ↗

Raw telemetry

Clean signal

Host

OTel CollectorTero policy engineGo

Find it before the audit does.

Sensitive data surfaces as issues continuously, not in the audit, not in the breach review.

Masked evidence, not vague alerts.

Every finding shows the field, masked examples, destination, and owner, reviewable without re-exposing the data.

Contain now, fix in code with context.

Redaction policies stop the exposure immediately; the issue carries full context to the code fix.

Redact where telemetry already flows.

Policies run in the collector, agent, or pipeline you already operate: reviewable, reversible, measured.

Mar 19, 2026

Introducing Policies

See what sensitive data is
already in your telemetry.

Connect read-only. Tero will show the exposure, source, destinations, owner, and safest path to containment.