Northflank, LangGraph and Presenton show different ways credentials may leave their intended storage or diagnostic boundary. Wiz documents what an attacker could then do with two separate Bedrock keys; those are separate observations, not proof of one shared campaign.
AnkiMCP, PDF Reader MCP, Presenton and Volto illustrate different failures: browser origin validation, missing per-request credentials, exposed local files and privileged backend proxies. They require different fixes.
Four controlled studies and one MCP proof of concept show distinct paths from lower-trust text into agent behavior. Their success rates measure different conditions and cannot be added into a universal prompt-injection statistic.
Resource scoping, input sanitation and instruction-channel training reduce different errors. Their security metrics cannot replace authorized-task completion.