Bug Bounty Programs
Bug bounty programs turn the global community of security researchers into a vulnerability-detection task force, complementing internal testing and traditional pentests.
What Are Bug Bounty Programs
Programs that reward independent security researchers for identifying and reporting vulnerabilities responsibly. They offer continuous coverage and a diverse external perspective.
Leading Platforms
HackerOne
Global market leader, 3000+ active programs. Focused on medium and large enterprises. Offers managed triage and an ambassador program.
Bugcrowd
The second-largest platform, strong in managed programs. Excellent for first programs with hands-on support.
Intigriti
A growing European platform, strong presence in Europe and LGPD compliance. Engaged community and humanized triage processes.
YesWeHack
A French platform focused on Europe and LGPD/GDPR. Multilingual support and European compliance.
Program Structure
1. Scope Definition
- In-scope assets: Domains, APIs, and mobile applications included
- Out-of-scope: Legacy systems, third parties, destructive testing
- Vulnerability types: OWASP Top 10, RCE, SQLi prioritized
- Rules of engagement: Rate limits, permitted hours
2. Reward Table
| Severity | Typical Reward |
|---|---|
| Critical | $5,000 - $50,000+ |
| High | $1,000 - $10,000 |
| Medium | $250 - $2,000 |
| Low | $50 - $500 |
Program Types
- Private (Invite-only): Limited to invited researchers. Ideal for getting started
- Public: Open to everyone. Greater coverage but requires more triage
- VDP (Vulnerability Disclosure Program): No financial rewards
- Time-bound: Campaigns focused on specific products
Triage Process
- Receipt: Confirm receipt within 24h
- Validation: Reproduce the vulnerability internally
- Classification: Determine severity (CVSS, business impact)
- Reward: Communicate the amount based on the payment matrix
- Remediation: Fix the vulnerability and validate
- Disclosure: Coordinate public disclosure where applicable
Success Metrics
- Average response time: Target < 24h for first response
- Time to remediation: Critical < 7 days, High < 30 days
- Submission volume: An indicator of engagement
- Duplicate rate: The lower, the better the scope definition
- Satisfaction score: Researcher feedback
Best Practices
- Clear communication: Well-documented disclosure policy
- Fast response: Researchers value prompt acknowledgment
- Mutual respect: Treat researchers as partners
- Safe harbor: Legal protection for good-faith activities
- Managed program: Consider third-party triage for scale
Common Challenges
- Noise volume: Many low-quality reports
- Misaligned expectations: Disputes over severity
- Internal capacity: Team overloaded with triage
- Scope creep: Researchers testing outside the scope
Bug Bounty ROI
Studies show that bug bounties cost 1/10 of the cost of a traditional pentest per vulnerability found, with continuous coverage. Mature programs find 30-50% more vulnerabilities than point-in-time audits.
Final Recommendations
Bug bounty programs complement but do not replace traditional pentests and security audits. Start with a private program, limited scope, and a conservative budget. Invest in efficient triage processes and build a reputation with the community through respectful communication and timely payments.