April 2026: Acceptance Devices Service Disruption
Cybersource experienced a service disruption affecting new or recently factory-reset Miura terminals that were unable to decrypt key injection requests, causing all transactions to fail with ERROR_TERMINAL_ERROR. The issue impacted merchants who saw "Accessory error" messages immediately after the key generation step when attempting transactions on affected devices. The incident lasted 112.5 hours from April 1-9, 2026, and was fully resolved after implementing a mitigation solution.