What is Responsible Disclosure?
Responsible disclosure (also known as “coordinated vulnerability disclosure”) is a policy and process by which ethical hackers, researchers or suppliers can safely report vulnerabilities to the system owner.
The aim is to allow vulnerabilities to be reported safely and confidentially, so they can be fixed before being published or exploited — without legal consequences for the reporter.
🎯 Why responsible disclosure matters
| Benefit | Explanation |
|---|---|
| Fast detection | External reporters extend the reach of your security monitoring |
| Coordinated mitigation | You get time to patch vulnerabilities before disclosure |
| Community relationship | Demonstrates openness and cooperation with ethical hackers |
| Compliance and reputation | Expected under, among others, NIS2, ISO 27001 and IEC 62443 |
🛠️ What belongs in a responsible disclosure policy?
| Element | Description |
|---|---|
| Contact channel | A dedicated email address or form for vulnerability reports |
| Scope | Which systems may be researched (and how far you may go) |
| Legal protection | No prosecution for reports made in good faith and within the rules |
| Expectations | Response and resolution times (e.g. patch within 90 days) |
| Reward / recognition | Optional: a hall of fame mention or bug bounty |
⚙️ Example scope (OT context)
- ✅ Testing in non-production environments (e.g. staging web portal)
- ✅ Reporting bugs in supplier firmware updates
- ❌ No brute-forcing of live SCADA or PLC systems
- ❌ No physical access to production sites
Reports can be submitted safely via email or a platform such as ZERODIUM, HackerOne, or via your own web form.
🧠 Best practices for organisations
- Publish a clear policy on your website (e.g.
/security.txt) - Set up a dedicated email address (e.g.
security@company.com) - Have a permanent response team or contact person (CSIRT)
- Triage reports quickly, communicate clearly and provide feedback
- Document reports in your Vulnerability Management process
- Also monitor externally: Darknet and leak-detection tools may trigger notifications
🔐 Legal frameworks and standards
| Regulation / standard | Relationship |
|---|---|
| NIS2 | Requires incident notification and vulnerability management |
| ISO 27001 & 27002 | Incident response and external communication |
| IEC 62443-2-1 | Recommends an external reporting process within the ISMS |
| ISAE 3402 | Trust basis for suppliers and reporting structures |
✅ For ethical hackers / reporters
- Always work within the limits of the law and the rules of the disclosure policy
- Do not exploit any vulnerabilities you find
- Provide enough technical detail to reproduce the vulnerability
- Communicate only via the official contact channels
- Be patient — some vulnerabilities require careful coordination
📌 In summary
Responsible disclosure helps organisations to fix vulnerabilities safely, without legal or reputational risks for either party. A mature security organisation makes this process open and transparent — including in OT/ICS environments.