App Security

In Android app development, data security is a top priority, especially when working with sensitive information. Protecting user data from unauthorized access and misuse is a responsibility we can’t overlook. In this guide, I’ll walk you through practical methods to secure data in Android apps, and show you how to implement these techniques effectively in...

Imagine a user is logging into their banking app while grabbing coffee in a crowded cafe. They quickly type in their PIN, maybe not noticing someone glancing over their shoulder — or that a vulnerability in the app could put their data at risk. That’s exactly why Secure Input for PIN Entry is so important, especially in...

Data security is vital for financial apps. Sensitive information — whether it’s login details or payment data — needs to be protected at all times, not just when it’s stored, but also while it’s in memory. Although encryption for stored data is widely practiced, securing data in memory is sometimes underestimated. Yet, keeping data safe while it’s actively being...

Protecting sensitive data in financial apps is essential to prevent security breaches that could put user information, app configurations, and financial transactions at risk. In this blog, I’ll walk you through how to secure configuration data in financial apps. We’ll begin by looking at common vulnerabilities, then move on to practical solutions like encryption and...

When building financial apps, security should always be a top priority. Sensitive information like banking credentials, personal details, and financial records must be protected at all costs. One often-overlooked security measure is disabling app data backups. While Android’s automatic cloud backup feature is convenient, it can expose sensitive data if not managed properly. In this...

In financial Android apps, setting up local session timeouts is essential to prevent unauthorized access if a user leaves the app unattended. With a session timeout, the app automatically logs the user out after a certain period of inactivity, adding a layer of security to protect sensitive data. In this blog, I’ll walk you through:...

These days, mobile apps—especially financial ones—are packed with sensitive data and powerful features, making security a top priority for Android developers. And it’s not just financial apps; protecting user data is now essential for every app. That’s why Google Play has introduced new guidelines focused on data security, pushing the entire Android ecosystem to be...

Fingerprint authentication has become a widely used method for securing mobile devices and applications. In Android, fingerprint recognition is commonly integrated to enhance security, offering a faster, more convenient way to unlock devices and authenticate transactions. But what makes fingerprint authentication on Android so secure? The answer lies in the Trusted Execution Environment (TEE) –...

Application security is essential in any mobile app development strategy, especially on Android, where protecting user data and app integrity is paramount. This guide explores practical security measures, like app signing, certificate checksum verification, authorized install checks, code obfuscation, and secure distribution. We’ll walk through each step with hands-on examples in Kotlin, making complex security...