The Hornet
Painful interactions that spread fast.
High severity means users can still finish the journey, but the experience is difficult enough to create churn, fatigue, and repeated support overhead.
High friction
Interactions are technically possible but physically or cognitively taxing.
Recurring pattern
The same issue appears across many components and pages.
Abandonment risk
Users can finish, but many will drop off before completion.
Escalates quickly
Left unchecked, this tier commonly creates Critical defects over time.