Acknowledgment of those who have helped us to secure hacksec.

System security is a top priority at Hacksec. Regardless of the amount of effort we put into the security of our systems, there can still be vulnerabilities present. No technology is perfect, and Hacksec believes that working with skilled security researchers across the globe is crucial in identifying any weaknesses. We encourage you to notify us if you believe you have identified a security issue in our product or service so we can work together to promptly resolve the issue.

If you discover a vulnerability, we would like to know about it so we can take steps to address it as quickly as possible. We would like to ask you to help us better protect our clients and our systems.

Please do the following:

  • E-mail your findings to
  • Do not take advantage of the vulnerability or problem you have discovered, for example by downloading more data than necessary to demonstrate the vulnerability or deleting or modifying other people's data,
  • Do not reveal the problem to others until it has been resolved,
  • Do not use attacks on physical security, social engineering, distributed denial of service, spam or applications of third parties, and
  • Do provide sufficient information to reproduce the problem, so we will be able to resolve it as quickly as possible. Usually, the IP address or the URL of the affected system and a description of the vulnerability will be sufficient, but complex vulnerabilities may require further explanation.


To qualify for a reward, you must:

  • Be the first reporter of the vulnerability
  • Follow the guidelines as described on this page
  • Not publicly disclose the vulnerability prior to our resolution
  • Provide a working proof of concept that exploits the security issue. The PoC should include at least:

    1.Details on what the vulnerability is
    2.The steps that we should take to reproduce the vulnerability
    3.What kind of impact the attack would have if the vulnerability is exploited

  • Solely use your created accounts and not access data of other users


While researching, we would like to ask you to refrain from:

  • Physical attack on the infrastructure
  • Any physical attempts against hacksec property or data centers
  • Denial of service
  • Login/Logout CSRF
  • Self-XSS (we require evidence on how the XSS can be used to attack another Leaseweb user)
  • Miss of rate limits
  • Report from automated tools and scans
  • Bugs in 3rd party software
  • X-Frame-Options related
  • Missing cookie flags on non-sensitive cookies
  • Missing security headers which do not lead directly to a vulnerability (unless you deliver a PoC)
  • DKIM/SPF/DMARC issues (we are aware they are missing and working on resolution)
  • Version exposure (unless you deliver a PoC of working exploit)
  • Directory listing with already public readable content
  • Content spoofing on error pages or text injection

What we promise:

  • We will respond to your report within 3 business days with our evaluation of the report and an expected resolution date,
  • If you have followed the instructions above, we will not take any legal action against you in regard to the report,
  • We will handle your report with strict confidentiality, and not pass on your personal details to third parties without your permission,
  • We will keep you informed of the progress towards resolving the problem,
  • In the public information concerning the problem reported, we will give your name as the discoverer of the problem.

We strive to resolve all problems as quickly as possible, and we would like to play an active role in the ultimate publication on the problem after it is resolved.