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Watermark for LLM-Generated Text

ID: f4e329a6-c47e-5525-af96-f241a8dd8c4a

STIX ID: report--f4e329a6-c47e-5525-af96-f241a8dd8c4a

Feed Name: Schneier on Security

Date Published: 2024-10-25

Date Updated: 2026-04-19

Author: Bruce Schneier

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Researchers at Google describe a cryptographic watermarking method for LLM-generated text that subtly biases token selection using a secret key, allowing keyed detection and showing promising robustness to post-editing, with reliable detection reportedly achievable on samples as small as ~200 tokens.

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