- 05.08.2026
- Read 4 min
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Bitcoin On-Chain Activity Hits a Yearly High as Coldcard Security Incident Raises Concerns
Bitcoin's blockchain has experienced its highest level of on-chain activity this year, with transaction volume increasing significantly as users moved funds across the network. The spike comes at the same time as reports of a security incident involving Coldcard, one of the best-known hardware wallet brands in the Bitcoin ecosystem.