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Dropbox removed ability to opt your files out of AI training
(news.ycombinator.com)
This is a most excellent place for technology news and articles.
Any specific tools will require knowledge of the system you're targeting, so I don't expect to see many public ML poisoning tools targeting anything but open source ML libraries, but adversarial sample tools to fool classifiers (including repainting stuff like those face transformation filters) might get more common because it's much much easier to test