Quiz Entry - updated: 2026.07.14
What is Denial of Service (DoS) in STRIDE and what security property does it violate?
Denying or degrading service so legitimate users can't use it — it violates Availability.
Denial of Service (DoS):
| Aspect | Description |
|---|---|
| Property violated | Availability |
| Definition | Deny or degrade service to an unusable level |
| Examples | Sending lots of requests to a website, resource exhaustion |
Types:
- DoS - Single source attack
- DDoS - Distributed Denial of Service (multiple sources, harder to block)
Mitigation:
- Rate limiting
- Traffic filtering
- CDN and load balancing
- Resource quotas
- Redundancy