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MosaicLeaks PA-DR results showing base Qwen3-4B at 48.7 percent strict chain success and 34.0 percent leakage, task-only training at 59.3 percent success and 51.7 percent leakage, and PA-DR at 58.7 percent success and 9.9 percent leakage.

MosaicLeaks shows research agents leak query secrets

MosaicLeaks is a privacy benchmark for research agents. It shows PA-DR cut answer or full-information leakage from 34.0% to 9.9%.

Lars Cornelissen · Jun 19, 2026