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      Posts by Samuel Hopstock - Software Engineer

      Mobile App Development Practices That May Unintentionally Facilitate Reverse Engineering

      10 minute read | January 14, 2025

      In the world of app development, security is often top of mind, but even small details and oversights can lead to big consequences. An illustrative example is Chirp Systems, where such an oversight allowed strangers to remotely unlock smart locks...

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        About Samuel Hopstock - Software Engineer

        13 min read | November 15, 2022

        Call Graphs: The Bread and Butter of Program Analysis

        Android Technical Dexguard ProGuard & R8
        21 min read | May 10, 2022

        Who You Gonna Call? Behind the Scenes of JVM Method Invocations

        Android Technical Dexguard ProGuard & R8
        19 min read | January 18, 2022

        How to Securely Implement TLS Certificate Checking in Android Apps

        Android Technical Protection Dexguard
        15 min read | December 21, 2021

        Insecure TLS Certificate Checking in Android Apps

        Android Technical Protection Dexguard
        Improve Your Mobile App Security in Less Than 5 Minutes https://www.guardsquare.com/blog/improve-mobile-app-security
        Call Graphs: The Bread and Butter of Program Analysis https://www.guardsquare.com/blog/call-graphs-the-bread-and-butter-of-program-analysis
        Who You Gonna Call? Behind the Scenes of JVM Method Invocations https://www.guardsquare.com/blog/behind-the-scenes-of-jvm-method-invocations
        How to Securely Implement TLS Certificate Checking in Android Apps https://www.guardsquare.com/blog/how-to-securely-implement-tls-certificate-checking-in-android-apps
        Insecure TLS Certificate Checking in Android Apps https://www.guardsquare.com/blog/insecure-tls-certificate-checking-in-android-apps