In our blog, you will find articles on various IT security related topics, such as open penetration tests and other public expertises.

Hackmanit is happy to announce its pro bono penetration test program for web and single sign-on (SSO) applications. In a half-year cycle, starting in January 2020, we offer free remote penetration tests with a maximum contingent of ten man-days.

We aim to support non-commercial organizations which cannot afford commercial penetration tests. You can apply for a free penetration test if you feel that your organization fulfills the following requirements:

  • Non-commercial application (e.g., open-source software)
  • High impact (e.g., a high number of users or high criticality in the security/privacy areas)
  • You as an applicant should take care of clarifying any potential ethical and legal concerns

There will not be any significant difference between our pro bono penetration test and our usual commercial engagements except that you do not have to pay anything! However, in contrast to our commercial tests, you must agree to allowing Hackmanit to publish the unfiltered version of our penetration test report. We will do this after you have fixed the vulnerabilities or, at the latest, after 90 days from informing you of the vulnerabilities.

Based on the proven expertise in the areas of Single Sign-On and OpenID Connect, our team has been selected to perform an open penetration test of the DENIC ID - an implementation of ID4me.
The scope of the penetration test was to evaluate typical Single Sign-On weaknesses and the impact of novel features implemented in DENIC ID on the security of this login system.


DENIC ID is the first widely-deployed implementation of ID4me ( - a novel protocol for federated identity management. It is based on well-established standards such as OpenID Connect and Domain Name System (DNS). In contrast to other Single Sign-On schemes, ID4me divides the duties of the identity provider into two separated entities: an identity agent and an identity authority. The identity agent provides registration services and manages user data. The identity authority is responsible for user authentication and authorization.