A major incident is a high-impact service failure that threatens core customer journeys, revenue, or trust and therefore needs coordinated response beyond a single on-call engineer. Teams usually label these as SEV1 / Critical events, appoint an Incident Commander, and communicate externally through Status Pages. Declaring major incidents clearly is a core discipline of effective incident management software.
What Makes an Incident “Major”
- Wide User Impact: Core functionality is unavailable or severely degraded for a large share of users.
- Business or Safety Risk: Significant revenue loss, data integrity risk, or contractual SLA breach is underway.
- Cross-Team Coordination: Resolution needs more than one responder — often a war room with SMEs and leadership visibility.
How Teams Run Major Incidents
- Declare Early: Over-declaring once is better than under-declaring while customers discover the outage first.
- Assign Roles: Incident Commander, communications lead, and technical leads keep work parallel instead of chaotic.
- Communicate on a Cadence: Internal updates and customer status posts reduce duplicate questions and rumor.
Best Practices
- Write Declaration Criteria: Tie “major” to concrete impact (for example, checkout failure rate above X%).
- Separate Fixing from Talking: One track restores service; another updates stakeholders on a fixed interval.
- Always Close with a Post-Mortem: Major incidents should produce blameless learning and tracked follow-ups.
The All Quiet Bridge
All Quiet helps major incidents move from chaos to a controlled workflow: page the right rotation, escalate when nobody answers, open collaboration in Slack, and keep stakeholders informed with status updates. Severity-based routing ensures SEV1 events get voice and SMS urgency while the team focuses on containment and recovery.