To ensure core security, we offer penetration tests in accordance with the BSI Practice Guide for Information Security Penetration Tests. For these tests, we always recommend that our clients perform them after white-box testing. Due to the lack of information, vulnerabilities can be overlooked during black box testing. Therefore, there is a risk that scenarios such as an attack by an informed internal perpetrator are not taken into account in the context of a blackbox test. Additionally, there is a higher, entirely avoidable risk of causing unintended damage during a blackbox test. For all exploits and vulnerabilities found, an action plan is provided following the test.