You're developing a mobile app with security concerns. How can you ensure your client's peace of mind?

Secure coding is important since most of security incident are made by human. It would be much better if you can prepare your own framework with input validation, data sanitization and make sure you are never use raw input data. The team should follow OWASP Mobile Application Security and security audit should be performed regularly.

Implementing strong encryption protocols for data storage and transmission ensures that user information remains protected and confidential, providing your client with confidence in the app's security measures.

Ensuring that all sensitive information is encrypted with strong, industry-standard algorithms such as AES is crucial. Furthermore, the use of SSL/TLS for secure communication between the application and servers is essential to protect data in transit against unauthorized interception. These measures are essential to maintain user security and privacy.

Adding multiple layers of authentication boosts security and prevents unauthorized access. Two-factor authentication (2FA) requires users to provide two pieces of information, like a password and a temporary code sent to their phone. Biometric methods, such as fingerprint scans and facial recognition, add extra protection using unique personal traits. Integrating One-Time Passwords (OTPs) with at least 6 digits or alphanumeric codes further thwarts brute force attacks. These measures ensure only authorized users access sensitive information.

I suggest that testing should follow OWASP Mobile Application Security Testing Guide and NIST Vetting the Security of Mobile Applications