“We had to,” she said. “Not everyone wanted you back. But cleaning the cascade required making you… less vulnerable to whatever was harvesting you. We call it I.S.A.I.D.U.B. — ‘Integrated Systemic Active Intrusion Defensive Utility Base.’ It’s a mouthful.” She gave a short, humorless laugh. “You owe me nothing. But you’ll owe a few people answers.”