Due to the rapid increase of ransomware attacks in the last years, 2021 was tagged the “Golden Era of Ransomware”. Most ransomware countermeasures recommend use of backups and runbooks. However, these techniques are seldom verified to ascertain the level of technical efficiency they provide. Furthermore, the human operators who use apply these ransomware countermeasures are rarely afforded the opportunity to understand how to react to ransomware attacks. A more effective way is by leveraging security chaos engineering to overcome the aforementioned shortcomings. By conducting planned experiments, ransomware countermeasures can be crafted as a hypothesis and proven. This approach enables security incident response teams to gain confidence in their technical and organizational skills as well as practice how to operate the ransomware countermeasures.