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      Posts by André Jacobs - Software Engineer

      Closing the Loophole of Custom Keyboards

      8 minute read | February 21, 2024

      Custom keyboards are user controls that facilitate text entry in PCs, tablets, and mobile apps. They’re used worldwide and are especially helpful for languages with more characters than a standard Latin alphabet keyboard, such as Japanese, Chinese,...

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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