Watermarking
Embedding a detectable signal in AI-generated content to mark its origin.
Watermarking biases generation so a hidden statistical or visual pattern can be detected later. It is a partial measure: image watermarks survive light editing but not determined removal, and text watermarks weaken under paraphrasing. The EU AI Act pushes providers toward machine-readable marking of synthetic content.
In practice: A pattern in generated pixels that a detector can read but a viewer cannot see.