Global tech titan Meta has recently open-sourced the digital watermarking tool Stable Signature, which can embed invisible watermarks directly into AI-generated images. This technology, developed in collaboration with INRIA (the French National Institute for Research in Digital Science and Technology), is applicable to open-source generative models such as Stable Diffusion. The digital watermarks are impervious to image editing, traceable to their original source, and capable of identifying different model versions, significantly enhancing the security of generative AI and helping to prevent illicit uses. Meta has stated that the source code for this technology is publicly available on GitHub along with published papers.