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Data classification helps you track sensitive data, organize assets, and meet compliance requirements. Know which tables contain PII before your next audit asks.

Two Types of Tags

TypeHow It WorksUse For
Auto-classificationAutomatically detects PII patterns in column namesCompliance, PII tracking
Custom tagsYou apply labels manually or in bulkOrganization, ownership, status
Both types work together. Auto-classification catches PII; custom tags add business context.

The Value

Before Classification

Auditor: “Where is customer PII?” You: “Let me check… probably in users… and maybe orders… I think there’s an email somewhere in marketing…”

After Classification

Auditor: “Where is customer PII?” You: filters by pii:* “Here’s the complete list of 47 columns containing PII across 12 tables.”

Quick Start

Already have data sources connected? Classification starts working automatically:
  1. Auto-classification runs during discovery
  2. Check results: Assets > Filter > Classification
  3. Add custom tags to organize assets by environment, team, or review status
Need to customize patterns? Go to Settings > Data Classification.

What Gets Auto-Classified

AnomalyArmor detects common PII patterns:
Data TypeExample ColumnsTag
Emailemail, user_emailpii:email
Phonephone, mobilepii:phone
SSNssn, tax_idpii:ssn
Credit Cardcard_numberpii:credit-card
Addressaddress, zip_codepii:address
Namefirst_name, last_namepii:name
IP Addressip, client_ippii:ip-address
Auto-classification reads column names only, never actual data values.

Common Use Cases

Compliance Audit Preparation

Before an audit:
  1. Filter assets by pii:* tags to see all PII
  2. Verify critical tables are classified
  3. Export the list for documentation
See Compliance & Governance for detailed workflows.

Organizing by Environment

Distinguish production from development:
  1. Create tags: production, staging, development
  2. Apply to assets via bulk tagging
  3. Filter alerts by tag to reduce noise

Tracking Review Status

Mark assets as reviewed:
  1. Create tags: pii-reviewed, needs-review
  2. Work through unreviewed assets
  3. Track progress with filters

Alert Routing

Route alerts based on tags:
  • Critical tables → PagerDuty
  • Non-critical → Email digest
  • Development → Slack only

Alerting on Tags

Create tag-based alert rules:
  1. Go to Alerts > Rules
  2. Click Create Rule
  3. Under Scope, select Filter by tag
  4. Choose your tag (e.g., production)
  5. Configure destinations
Now alerts only fire for assets with that tag.

In This Section

Auto-Classification

Automatic PII detection and patterns

Custom Tags

Create and apply your own labels

Compliance

SOC 2, GDPR, and audit workflows