The web’s newest weapon against AI scrapers is a font

ShieldFont, created by designers Isaque Seneda and Gabriel Abrucio, uses ligature‑based word substitutions within a custom web font to render a perfectly readable page for human users while embedding an altered, nonsensical version of the HTML that scrapers download. The technique is intended as a practical opt‑out from unauthorized AI training data collection, offering publishers a non‑invasive way to poison scraped content without breaking webpage usability.

Source: Ars Technica | 2026-08-12