CISPA researcher Ninja Marnau commented on the “Paris Call for Trust and Security in Cyberspace”, an international agreement, in which the signatory states commit themselves, among other things, to comply with voluntary standards for the responsible handling of IT-security vulnerabilities during peacetime, and preferable publish those vulnerabilities instead of using them for attacks. The contribution mentions various examples to explain why IT Security decreases when governments do not publish vulnerabilites. To the article.