Chinese social media platforms add hidden digital watermarks to track screenshot sharing https://advox.globalvoices.org/2022/09/07/chinese-social-media-platforms-add-hidden-digital-watermarks-to-track-screenshot-sharing/
@aral Facebook does add watermarks for direct download: https://twitter.com/oasace/status/1149181539000864769 . Also someone claims that Dark Reader can remove the watermark: https://twitter.com/Jeffreychang96/status/1566399281228963843 .
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