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      Posts by André Jacobs - Software Engineer

      Attack of the Clones: Preventing Fake Mobile App Proliferation

      6 minute read | April 29, 2025

      Somewhere in the world, you might have an evil twin that steals money, abuses the innocent, and brings shame to your name. But while most ordinary citizens don’t have to worry about this seemingly far-fetched dilemma, the “evil twin” problem is an...

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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