Apple’s new iPhone 17 features Memory Integrity Enforcement (MIE), designed to protect crypto users by blocking zero-day exploits that target crypto wallets and Passkey signing operations. The MIE system employs memory tagging to identify and prevent dangerous memory access patterns such as out-of-bounds and use-after-free errors, significantly reducing the risk of memory-corruption attacks. This active defense mechanism operates continuously across kernel and user processes, making it increasingly difficult and costly for attackers to develop spyware. However, while MIE enhances security for wallet apps and Passkey flows, it is not foolproof; it cannot guard against phishing, social engineering, or malicious content. Users are encouraged to maintain vigilance, as security improvements do not guarantee invulnerability. Last month, a severe zero-click vulnerability was identified, allowing attackers to compromise Apple devices without user interaction. Thus, despite advancements like MIE, crypto users must remain cautious due to persistent threats.

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