# Binance Founder CZ Urges iOS Users to Install System Updates By Simon Yoon Canonical URL: https://www.tokenpost.com/news/technology/51045 Published: 2026-11-07T20:05:13.000Z Updated: 2026-11-07T20:05:13.000Z Section: Technology > He warned that DarkSword can exploit iOS vulnerabilities through a Safari link, especially for users who have not updated in a long time. Binance founder CZ urged iOS users to install system updates, warning that DarkSword can exploit iOS vulnerabilities through a Safari link. He directed the reminder at users who had not updated their systems in a long time. CZ said wallet software cannot update a user’s operating system. He framed self-custody as a personal responsibility, saying wallet software cannot maintain the device’s operating system for its owner. DarkSword can steal locally stored cryptocurrency wallet data from iPhones and iPads, a risk detailed in a [DarkSword warning](). On Nov. 6, iPhone users were urged to update iOS and check their devices for malicious apps amid reports of [iOS self-custody wallet losses](). ## Links in this article - [DarkSword warning](https://www.tokenpost.com/news/technology/40039) - [iOS self-custody wallet losses](https://www.tokenpost.com/news/technology/50344)