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Posts by André Jacobs - Software Engineer

Protecting Mobile Applications in a Zero Trust World

17 minute read | July 29, 2025

In the beginning, there was implicit trust. Networks were originally designed around the idea that all the digital assets within an organization could be protected with strong perimeter defenses (e.g., firewalls). If a user was deemed worthy to...

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    About André Jacobs - Software Engineer

    15 min read | November 17, 2019

    iOS App Security: Protecting SDK Symbols & Preventing Information Leakage (Part 2 of 2)

    iOS Technical Protection iXGuard
    10 min read | November 12, 2019

    iOS App Security: An Introduction to Objective-C Metadata & Symbols in Swift & Objective-C Apps (Part 1 of 2)

    iOS Technical Protection iXGuard
    Using LLVM to Prevent Objective-C Swizzling Through Devirtualization https://www.guardsquare.com/blog/using-llvm-to-prevent-objective-c-swizzling-through-devirtualization
    iOS App Security: Protecting SDK Symbols & Preventing Information Leakage (Part 2 of 2) https://www.guardsquare.com/blog/ios-app-security-protecting-sdk-symbols-preventing-information-leakage-part-2-2
    iOS App Security: An Introduction to Objective-C Metadata & Symbols in Swift & Objective-C Apps (Part 1 of 2) https://www.guardsquare.com/blog/ios-app-security-introduction-objective-c-metadata-symbols-swift-objective-c-apps-part-1-2