API Abuse is the unauthorized or excessive use of an API, including data scraping, resource exhaustion, privilege escalation, and using stolen credentials.
API Abuse
API Abuse is the unauthorized or excessive use of an API, including data scraping, resource exhaustion, privilege escalation, and using stolen credentials.
Why It Matters
API abuse costs enterprises billions annually in unauthorized compute, data exfiltration, and service disruption. The OWASP API Security Top 10 highlights broken authentication and excessive data exposure as leading API vulnerabilities.
How It Works
Attackers exploit APIs by using stolen or leaked credentials, bypassing rate limits, accessing unprotected endpoints, or making requests that consume disproportionate resources. Sophisticated abuse often mimics legitimate traffic patterns.
Best Practices
- Implement authentication on every endpoint
- Apply rate limits based on business logic, not just volume
- Monitor for anomalous usage patterns
- Use request validation to reject malformed or excessive payloads
Common Mistakes
- Only protecting the "important" endpoints while leaving others open
- Rate limiting by IP only, missing distributed attacks
- Not monitoring API usage in real time
How ShieldKey Helps
ShieldKey prevents API abuse through per-token rate limits, spend caps, IP restrictions, and real-time anomaly detection. Even if a Shield Token is compromised, the enforced limits contain the damage.
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What counts as API abuse?
API abuse includes using stolen credentials, exceeding rate limits, scraping data, exploiting unprotected endpoints, and any unauthorized use of an API beyond its intended scope.