Binance co-founder CZ: Recommends users update their iOS systems

Binance co-founder Changpeng Zhao (CZ) urged users on Nov. 6 to update their iOS systems, particularly those who have not done so in a long time. He noted that wallet software cannot update a device's operating system, and that self-custody means users bear responsibility for their own security. The reminder matters because outdated operating systems can leave self-custodial wallets exposed to vulnerabilities that app-level updates cannot fix. No specific tokens, chains, or figures were cited in the notice. What to watch next is whether other wallet providers echo the guidance and whether Apple's latest iOS security patches see a measurable uptick in adoption among crypto users.