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      Posts by André Jacobs - Software Engineer

      Verifying OS Integrity with Hardware-Backed Key Attestation

      7 minute read | February 11, 2025

      In an age where mobile apps hold extensive sensitive data, securing the environment in which these apps operate is critical. Mobile app security encompasses multiple layers of protection, and one crucial aspect of the security is ensuring that the...

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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