TOPPAN Sent Data on 177,000 Sompo Japan Customers to a Rival Insurer. The Fix: A Second Pair of Eyes
TOPPAN, which runs a shared insurance-certificate service for 14 Japanese non-life insurers, mistakenly sent data on 177,426 Sompo Japan customers to another insurer after a drag-and-drop error. What happened, what was exposed, and why its recurrence measures lean on a human checker.