Sygnum Becomes First Swiss Bank to Test AI-Powered Live Blockchain Transactions

According to Sygnum, on May 18, 2026, the Swiss regulated bank conducted live digital asset market transactions through an artificial intelligence agent while ensuring clients maintained complete control over custody, wallet authorization, and final transaction approvals. The AI agent was capable of interpreting plain-text instructions and independently preparing complex blockchain transactions, which were then presented to clients for final authorization before execution. Private keys remained in client possession throughout, with all transactions signed exclusively through self-custodial wallets on clients' personal devices, reflecting Sygnum's human-in-the-loop framework that prevented AI operations from proceeding without explicit client approval.
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