Watermarking (SynthID) is a cybersecurity technique that embeds invisible markers into digital content, such as images or audio, to identify its source or verify its authenticity. SynthID, developed by Google DeepMind, specifically embeds imperceptible watermarks into AI-generated images. These watermarks are robust against common image manipulations like cropping or compression, making them difficult to remove or alter. The main purpose of watermarking with SynthID is to help distinguish between real and AI-generated content, supporting efforts to combat misinformation and protect intellectual property. This technology is increasingly important as synthetic media becomes more prevalent online.