Your question is Securing User Data. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How do you ensure the security of user data in your mobile applications?
Discuss how you would protect data throughout its lifecycle on iOS and Android, including data in transit, data at rest, authentication tokens, local storage, backend APIs, logging, and incident response. Explain the threats your controls address and how you would verify that those controls work.