Case Study: Yousign strengthens continuous security testing with YesWeHack Bug Bounty

Yousign - Customer Case Study

Yousign, a European leader in the eSignature market, needed a security approach that went beyond traditional annual pentests. The company wanted stronger guarantees on the hunters invited to its programs, better coverage across different skills and perspectives, and continuous testing that could keep pace with frequent releases and evolving scope.

With YesWeHack’s private bug bounty platform, Yousign launched a program across production and staging environments to complement its pentests and add ongoing security validation. The results were strong: the company found many more vulnerabilities than with pentesting alone, improved team security practices, and gained a year-round testing model at roughly the cost of a single audit. Yousign also highlighted YesWeHack as a sales and marketing differentiator, with plans to expand bug bounty further into CI/CD and potentially move to a public program.

Yousign

Kevin Dubourg

Bug Bounty Program Manager