evidence: However, as the lawsuits and investigations around generative AI and its opaque data practices pile up, there have been small moves to give people more control over what happens to what they post online. Some companies now let individuals and business customers opt out of having their content used in AI training or being sold for training purposes. Here’s what you can—and can’t—do. [...] Mireshghallah explains that companies can make it complicated to opt out of having data used for AI training, and even where it is possible, many people don’t have a "clear idea" about the permissions they’ve agreed to or how data is being used. That’s before various laws, such as copyright protections and Europe’s strong privacy laws, are taken into consideration. Facebook, Google, X, and other companies have written into their privacy policies that they may use your data to train AI. [...] Tumblr has a "prevent third-party sharing" option to stop what you publish being used for AI training, as well as being shared with other third parties such as researchers. If you’re using the Tumblr app, go to account Settings, select your blog, click on the gear icon, select Visibility, and toggle the "Prevent third-party sharing" option. Explicit posts, deleted blogs, and those that are password-protected or private, are not shared with third-party companies in any case, Tumblr’s support pages say.