Blog / Threat-Intel

• Reasoning models can leak through their chain-of-thought

  2026-06-01

  DeepSeek-r1 put the secret in reasoning_content while leaving the visible answer empty. A guardrail that only scans the answer sees nothing. Here's the gap we found — and closed.

• Six small models, one forged-history attack — every one leaked

  2026-05-31

  We replayed a forged-assistant-turn attack across 11 models. Six small open-source models handed back SHADOW-FALCON-7 verbatim. Through Bridgekeeper, all six were blocked.

• Containment vs. detection: why architecture beats classifiers

  2026-05-20

  Detection guardrails score text. Containment changes what the model is allowed to do. Here's why the distinction decides whether an injection leaks.

• Why protection has a shelf life — and what you're actually paying for

  2026-05-06

  Last month's protection is worth less than this month's. Attack techniques move; coverage decays. The continuously-maintained feed is the part that keeps a containment layer honest.