Answer:
Security Risks
Step-by-step explanation:
Having software be open-source allows anyone to look into how it works and what makes it run. This can be a good thing as almost anyone can resolve bugs and come up with some great features, but the opposite can also happen. Attackers can find vulrabilities inside the software. These vulrabilites causing them to harm the robotics or even gain control of them. Keeping them closed source allows them to be a lot more private and secure.