Apple’s new iPhone 17 adds a robust layer of protection for cryptocurrency users, featuring hardware-level memory safeguards designed to block common attack methods that target signing operations.
At the heart of this enhancement is Memory Integrity Enforcement (MIE), enabled by default. MIE leverages Enhanced Memory Tagging Extension (EMTE)-style memory tagging to identify and prevent dangerous memory behaviors such as out-of-bounds access and use-after-free errors.
Cybersecurity firm Hacken notes that the new MIE system “meaningfully” lowers the risk of attackers exploiting memory-corruption zero-days to hijack signing code. “It’s a real plus for crypto users, particularly high-net-worth individuals or those who sign frequently,” Hacken told Cointelegraph.
These types of vulnerabilities account for nearly 70% of software flaws and are frequently targeted in zero-day attacks against wallets and Passkey approvals.
Apple strengthens iPhone 17 security for crypto users
Apple’s iPhone 17 introduces Memory Integrity Enforcement (MIE), a feature designed to actively detect and block dangerous memory access patterns, such as out-of-bounds and use-after-free errors, which are commonly exploited in attacks. MIE runs continuously across both kernel and user-level processes, making the development of spyware and targeted exploits more difficult and costly.
“It raises the bar for attackers and makes targeted spyware and exploit development much harder and more expensive,” Hacken explained. “This directly benefits wallet apps and Passkey flows that rely on in-process operations.”
However, MIE is not a cure-all. It does not protect against phishing, social engineering, malicious web content, or compromised apps, nor does it replace secure hardware wallets or eliminate the need for user vigilance. “Security improvements reduce overall risk but don’t make devices invulnerable,” Hacken cautioned, urging users to stay alert and anticipate new vulnerabilities.
Ongoing threats to Apple crypto users
Apple crypto users continue to face significant security risks. Last month, a zero-click vulnerability was revealed that could allow attackers to compromise iPhones, iPads, and Macs without any user interaction. Apple responded with security patches across multiple OS versions to address the flaw.
Earlier this year, Kaspersky warned that malicious software development kits (SDKs) in apps on Google Play and Apple’s App Store were scanning users’ photo galleries for crypto wallet recovery phrases.
In addition, Trust Wallet advised Apple users last year to disable iMessage after receiving “credible intelligence” of a high-risk zero-day exploit circulating on the Dark Web, capable of giving hackers full control over iPhones without user interaction.
