# The Silent Hijack: How a Single Vector Poisons an AI That Still Knows the Right Answer

- slug: the-silent-hijack-how-a-single-vector-poisons-an-ai-that-still-knows-the-right-answer
- date: 2026-04-06
- category: Artificial Intelligence

ThoughtSteer poisons a single embedding in continuous latent reasoning models. The model encodes the right answer in its hidden states while outputting the attacker’s choice — and every existing token-level defense misses it, surviving even 25 epochs of clean fine-tuning.

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