CZ Says No Crypto Wallet Is 100% Safe: Is Multi-Wallet Security the Future of Self-Custody?
- CZ says no crypto wallet is fully safe and urges users to divide funds across devices.
- Coldcard’s seed flaw exposed 1,082.65 BTC across 1,196 wallet addresses in 41 minutes.
- Multi-wallet security limits losses with separate seeds but complicates recovery.
Changpeng Zhao has questioned whether any single crypto wallet can provide complete protection after a Coldcard flaw exposed weaknesses inside seed generation. “Nothing is 100%,” Zhao wrote on X on August 1, urging users to divide funds across several wallets rather than trust one device.
His comments followed a Bitcoin theft linked to predictable seed creation, showing that offline storage can fail before a wallet ever signs a transaction. The incident shifted attention from device theft and phishing toward failures hidden inside firmware, randomness, and recovery design.
Coldcard Seed Flaw Exposes Hardw…
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