SEV1 — Standard Operating Procedures

Incident Response Playbook

Helios Digital • Gold Issuance Facility

Severity Levels

SEV1Existential

Active exploit / backing integrity threatened

SEV2High Impact

Partial outage / potential exploit

SEV3Moderate

Localized issues

SEV4Minor

Informational

Authority

Halt IssuanceOps Lead + Engineering Lead (2-person rule)
Treasury Halt / Conversion HaltTreasury Lead + Ops Lead
Legal Notifications / Regulatory ResponsesLegal Lead
Public CommunicationsComms Owner (assigned) with Legal approval for SEV1/2

Golden Rules

1

Facts only. No promises. No timelines unless you can meet them.

2

Preserve evidence: logs, snapshots, keys, configs.

3

Every admin action must be logged with who/what/why.

Runbook (SEV1)

T+0 (0–60 minutes)

  • Declare incident channel + incident commander (Ops Lead).
  • Pause issuance contracts / disable onboarding as needed.
  • Snapshot system state: token supply, backing positions, last merkle root, outstanding redemptions.
  • Rotate credentials if compromise suspected.

T+1–6 hours

  • Establish root cause hypothesis.
  • Contain blast radius.
  • Draft public statement: what happened (known), what is paused, where to verify reserves, next update time.

T+6–24 hours

  • Implement fix or containment.
  • Notify key partners (custody, on/off-ramps, venues).
  • Start post-mortem doc while memory is fresh.

Communications Templates

Initial Statement

"We identified an issue affecting [system]. Issuance has been paused as a precaution. Reserves and published proofs remain available at [verification page]. Next update at [time]."

Update Statement

"Update: [new facts]. Actions taken: [list]. Current status: [status]. Next update at [time]."

Resolution Statement

"The issue is resolved/contained. Summary: [facts]. Corrective actions: [facts]. Post-mortem will be published internally and key learnings applied."

Evidence Retention

  • Keep all logs and snapshots at least 7 years (or per counsel).
  • Never delete financial records; only append corrections.

Law Enforcement / Legal

  • Only Legal Lead interfaces.
  • Any freeze/clawback must follow published policy and be logged publicly where possible.