Binance co-founder Changpeng Zhao, known as CZ, has urged iPhone owners to install current iOS updates. In a November 6 post on X, he noted that wallet applications cannot upgrade the operating system on a handset, and that holders bear full responsibility for funds they self-custody. His message followed reports about DarkSword, an exploit that can use malicious sites visited in Safari to reach wallet files and recovery phrases on iOS devices. One crypto user said an attack would not require connecting a wallet or approving anything, since a single visit to a compromised site could be enough. Researcher Officer's Notes had reported about $5.57 million in crypto stolen through the flaw.
Why it matters: The report highlights that iPhone users holding crypto face risks from outdated system software, and that self-custody places security responsibility on the holder themselves.
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