New MIE features on iPhone 17 enhance crypto wallet security

Cobo founder Discusfish says the new iPhone 17 will introduce new Memory Integrity Enforcement (MIE) features that will enhance security in crypto wallets.

The system is designed to combine hardware and software protection to block sophisticated memory attacks while signing Crypto wallets.

Why it’s important for crypto users

In a blog post on September 9th, Apple shared that MIE is using the Enhanced Memory Tagging Extension (EMTE), which features an A19 chip and checks memory in real time. This setup instantly blocks common exploits, such as buffer overflows and lean attempts.

This is important in the crypto industry, as memory flaws account for almost 70% of all software vulnerabilities and are a common entry point for malware during wallet operations. The signing process has always been a top goal for hackers. Because a single weakness can lead to fund theft.

Apple’s new Mie can cause damage by stopping these attacks at the hardware level. Shutting down these threats early makes it much safer and more difficult for your wallet to steal your assets. Another advantage is that protection is always on. This means that users don’t have to set up anything themselves. This feature called it a “big victory for high-net crypto users and frequent signers.”

Apple also addresses side-channel risk using a function called TAG ConfidentLisity Enforcement (TCE) to prevent attackers from exposing memory tag values ​​in speculative execution or otherwise. This closes another route that hackers often use to retrieve wallet data.

The company’s security team confirmed that MIE was tested against the actual exploit chain, and most attacks stopped early. This reduces the chances of bad actors compromising their software.

What’s more, protection goes beyond Apple’s native tools. Developers can also enable Xcode’s security settings to enable these features, allowing cryptographic apps outside of Apple’s ecosystem to benefit from the same defense model.

iPhone 17 sets new standard for wallet safety

Overall, the new iPhone 17 reduces the risk of targeting spyware private keys by combining typed memory allocators, tag checking, and confidentiality protection measures. This means that digital asset owners can reduce their reliance on external hardware wallets or specialized devices for their daily signatures.

Elsewhere, a recent report from Web3 security company Certik revealed that over $2.1 billion had already been lost to crypto-related attacks in 2025. Wallet violations make up a large part of these losses, with only the compromised app taking over $1.6 billion. The company added that this will make them the most harmful attack vector.