Atribu
Healthcare & HIPAA

Incident Response

PHI breach detection, containment, and notification procedures

Incident Response

This document covers what to do if Protected Health Information (PHI) is sent to an ad platform or otherwise exposed outside the intended scope.

Severity levels

LevelDescriptionResponse Time
P1 — Confirmed breachPHI confirmed sent to Meta/GoogleWithin 1 hour
P2 — Suspected breachPossible PHI exposure, not confirmedWithin 4 hours
P3 — Policy violationHealthcare account misconfigured, no confirmed PHI sentWithin 24 hours

Immediate containment (P1/P2)

Stop all exports (within 15 minutes)

Disable exports for the affected profile:

  • Go to Settings > Integrations and disconnect Meta/Google destinations, OR
  • Go to Conversion Sync > Destinations and disable all destination configs, OR
  • Set export_meta_enabled = false and export_google_enabled = false in profile_attribution_settings

If not already active, switch privacy mode to HIPAA.

Assess scope (within 1 hour)

Query the conversion_exports ledger to determine:

  • How many events were sent during the exposure window
  • What data was in the payloads (check privacy_mode_snapshot.mode — if "standard", payloads may contain unfiltered PII)
  • How many individuals were affected
  • Which PHI categories were involved (names, emails, health conditions, appointment types)

Check payload_redacted — if it contains full data (not {redacted: true, hipaa_mode: true}), PHI may be in the audit log.

Document findings

Record:

  • Timeline: when misconfiguration started, when detected, when contained
  • Affected profiles and workspaces
  • Number of events sent with PHI
  • Categories of PHI exposed
  • Destinations that received the data
  • Whether the data can be deleted from the destination

HIPAA breach notification rules

Under the HIPAA Breach Notification Rule (45 CFR 164.400-414):

500+ individuals affected

NotifyDeadline
HHS (Department of Health and Human Services)Within 60 days of discovery
State attorney general (affected states)Within 60 days
Affected individualsWithin 60 days, by mail or email

Fewer than 500 individuals

NotifyDeadline
HHSAnnual log submission by March 1 of the following year
Affected individualsWithin 60 days

Atribu's obligations as Business Associate

Under the BAA (Annex F, Section F-6), Atribu must:

  1. Report the breach to the Customer (Covered Entity) without unreasonable delay
  2. Provide: nature of incident, categories of affected data, likely consequences, mitigation steps
  3. The Customer is responsible for downstream notifications to HHS and individuals

Atribu reports to the customer, not to HHS directly

As a Business Associate, Atribu's notification obligation is to the Covered Entity (your customer). The customer then determines whether to notify HHS, state authorities, and affected individuals.

Post-incident review

After containment and notification:

  1. Root cause analysis — Why was the profile in standard mode? Was Healthcare Mode disabled accidentally? Did the onboarding flow miss the healthcare use case?
  2. Preventive measures — Should the workspace be in Healthcare Agency Mode? Are there other profiles that need migration?
  3. System improvements — Update detection logic, review allowlist defaults, consider additional safeguards
  4. Documentation — Record the incident in audit_log_events, update legal compliance notes, file per company policy

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