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ShieldFont
Protect human writing by poisoning unauthorized AI training.
ShieldFont — an open-source typeface that protects written content by poisoning unauthorized AI training datasets. Readers see normal text; AI scrapers reading the HTML source get pollluted wording instead — coherent enough to pass data-quality filters, corrupt enough to pollute any model trained on it without consent. Creative resistance for the AI debate: a self-enforcing opt-out built into the content itself. Built by S&A with Copenhagen type foundry Playtype.
The pitch in one sentence:
Introducing ShieldFont: an open-source typeface that protects written content by poisoning unauthorized AI training datasets.
Try it now:
Paste any sentence at shieldfont.org/encoder
How it works:
People read rendered pixels, while most AI mass scrapers read HTML.
ShieldFont uses glyph substitution to show readers the real text while placing altered wording in the source code.
The altered text still reads as coherent English and is designed to pass data-quality filters, polluting unauthorized AI training datasets.
Why it matters:
ShieldFont brings creative resistance to the AI ethics debate, turning the content itself into a self-enforcing opt-out against unauthorized mass scrapers collecting human writing without consent.
Who:
Built by S&A (creative studio) with Copenhagen type foundry Playtype.
Craft support by independent Brazilian creatives.
Full credits are included in the press release.
More info:
White paper: shieldfont.org/white-paper
honestly the concept is pretty clever, swapping clean text for AI scrapers while keeping the reading experience intact is a neat trick. would love to see how well it holds up against bigger scrapers though.
About ShieldFont on Product Hunt
“Protect human writing by poisoning unauthorized AI training.”
ShieldFont was submitted on Product Hunt and earned 2 upvotes and 2 comments, placing #158 on the daily leaderboard. ShieldFont — an open-source typeface that protects written content by poisoning unauthorized AI training datasets. Readers see normal text; AI scrapers reading the HTML source get pollluted wording instead — coherent enough to pass data-quality filters, corrupt enough to pollute any model trained on it without consent. Creative resistance for the AI debate: a self-enforcing opt-out built into the content itself. Built by S&A with Copenhagen type foundry Playtype.
ShieldFont was featured in Open Source (68.7k followers), Privacy (11.3k followers), Artificial Intelligence (475.9k followers) and GitHub (41.4k followers) on Product Hunt. Together, these topics include over 163k products, making this a competitive space to launch in.
Who hunted ShieldFont?
ShieldFont was hunted by Isaque Seneda. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Isaque Seneda