Here's how you can use problem solving skills to address security vulnerabilities in mobile apps.

One can produce countering actions if the problem is identified. Identifying security vulnerabilities present is not a one time job but a on going task. Following is the approach: 1. App Architecture: come up with app architecture and document data flows diagrams and component interactions 2. Data storage: Decide on whether to save data if so what are all the data stores for the app 3. Static Analysis: Analyse code for hard coded credentials, API Keys 4. Libraries: Check for updates to libraries and all the dependencies 5. Dynamic Analysis: Improper session managements and insecure data transmissions 6. Pen Test: Simulate hackers behaviour using tools like OWASP ZAP, Burp Suite and Mobile security framework to build guarding mechanisms etc

Some of the best practices for securing code are Configure network security policies using network_security_config.xml. Always Validate user input. Avoid storing sensitive info in Shared preferences. Encrypt sensitive data like tokens with AES-256 and use HTTPS. Use ProGuard or R8 for code obfuscation and shrinking. Use Static Code Analysers and lints for identifying vulnerabilities. Use secure, short-lived tokens for Authentication. Use secure logging.

One should pay attention to following to make sure the secure code is being produced. Following are some of the crucial practices to deploy and manage them effectively for guarding the application from attacks. Input validation and Sanitisation, Authentication and Authorisation, Data protection (encrypt, Secure storage), Secure communication, Error Handling Code, Code obfuscation, Remove debug mode in production, Regularly updating the code and dependencies, Secure APIs, Secure local database, Session Management, Use of device security features, etc

Be careful about what you push in your code repository! Api keys, tokens should never be pushed in clear. Use tools like SOPS to automate the keys encryption and use tools like Gitleaks to detect security vulnerabilities during code review.

Authenticating user is the first block of defence in the stream of securing the mobile app. Rely on techniques like Multi factor authentication, Biometric authentication, Strong password policies, Password Hashing using algorithms like bcrypt, Argon2 and PBKDF2, Password Reset mechanism with email linking and SMS Code, Token based authentication and token expiry management, Store authentication data in places like Keychain for iOS Keystore for Android, Avoid storing sensitive information, Session Management, requires re authentication for sensitive operations like changing configurations or passwords, payments, Work towards educating users about best practices, encourage users to update the app,

Utilize multi-factor authentication (MFA) for enhanced verification. Educate users on creating strong passwords and enforce complexity requirements. Secure user authentication safeguards against unauthorized access and effectively protects user data.

Avoid storing data on device, if necessary make sure to identify sensitive information. Implement encryption for the data at rest and data in transit. Store encryption keys in places like Secure Enclave for iOS and Trusted execution environment for Android. Implement a key management system that can handle key generation, distribution, rotation, and revocation. Use Cryptograhic libraries like OpenSSL, Bouncy Castle or Apples CryptoKit and Android's Keystore. Do not implement Encryption from scratch, it is only going to burn out with out producing substantial outcomes. Secure communication using TSL/SSL by using valid and properly configured certificates Implement security pinning Encrypt database using SQLCipher, etc

Make sure that the sensitive data (personal user informations) is stored in a protected area in the app. Use native solutions like keychain in iOS, or just by using data encryption algorithms.

Regular updates enable developers to swiftly patch known vulnerabilities, reducing the likelihood of attacks. As new threats emerge, releasing updated app versions with enhanced security measures is crucial. Updates allow for quick adaptation to new encryption techniques and authentication mechanisms. Ensuring the code base aligns with updated compliance standards is essential. Incorporating updates from third-party dependencies is important for overall security. Additionally, updates provide an opportunity to refine and improve user experience. Regular updates also help build and maintain user trust.

Maintaining app security requires staying current with the latest patches and updates. Regularly updating your app not only introduces new features but also addresses potential security vulnerabilities. By prioritizing regular updates, your app remains resilient against potential threats and fosters user trust through proactive security measures.

Stay informed about common mobile app vulnerabilities and emerging threats in the industry. Share findings and best practices with your development team to prevent similar vulnerabilities in future updates. Communicate transparently with users about security updates and the steps you're taking to protect their data.

Automate your DAST & SAST tests by using tools like MobSF in your CICD pipelines to automate the pen-testing process. Automated tools are not enough ! Conduct regular human security audits and penetration testing to uncover weaknesses in your app's security.