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iOS Security
17 min readJan 7, 2025
- How would you handle data privacy and user consent in an iOS app?
- How would you implement multi-factor authentication in an iOS banking app?
- How would you securely store sensitive user data, such as tokens or passwords, in an iOS application?
- Explain how
Keychainworks in iOS. How would you use it in Swift to store and retrieve sensitive data? - What are the security risks of storing sensitive data in
UserDefaults? - How do you encrypt data before storing it on the device in Swift?
- What is SSL/TLS, and why is it important for iOS app security?
- How do you implement certificate pinning in Swift? Can you provide an example?
- What are the risks of using HTTP instead of HTTPS in your application?
- How can you validate the integrity of a server’s SSL certificate in Swift?
- How would you implement biometric authentication (Face ID/Touch ID) in an iOS app using Swift?
- What is OAuth, and how is it implemented in iOS apps for secure authentication?
- How can you securely manage access tokens in an app that integrates with a backend API?
- What are some methods to prevent reverse engineering of your iOS app?
- How do you enable App Transport Security (ATS), and why is it important?
- What is Jailbreak detection, and how would you implement it in your iOS app?
