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The Polylog AI Intelligence Brief

Morning Edition · Tuesday, June 23, 2026

Researchers Show 'Slow-Burn' Prompt Injection Slips Past Per-Event Detectors

Two preprints argue that agent guardrails which score one message at a time miss attacks that distribute weak directives across a whole trajectory, and that current supervision filters trade safety against cost and latency.

Researchers Show 'Slow-Burn' Prompt Injection Slips Past Per-Event Detectors

A new paper on temporal-accumulation prompt injection targets a weakness in agent defenses. Most prompt-injection detectors score a single event or message, but control-plane attacks against tool-using agents can spread weak directives acro…

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Oversight and Evaluation Lag Accelerating AI Capabilities

Over the next 3-6 months, evidence mounts that governance, evaluation, and agent-safety methods are failing to keep pace with capability growth, driving investment in interpretability, agent-manipulation benchmarks, and institutional-reform proposals.