The web’s newest weapon against AI scrapers is a font
摘要
设计师推出了一款名为ShieldFont的新字体，旨在阻止AI公司抓取网页内容训练模型。该字体利用连字技术，在屏幕显示时呈现正常文本，但底层HTML代码中则替换为无意义词汇，使爬虫抓取到的数据失去价值。这为网站发布者提供了一种无需法律诉讼的技术性“退出”机制，同时不影响普通用户的阅读体验。
AI companies' penchant for scraping through large swathes of the public web in search of valuable training data has already led to lawsuits and technical fixes aimed at stopping the practice. Now, a pair of designers are hoping to stymie these scrapers with a new font designed to offer people a perfectly readable webpage while serving scrapers a subtly edited, nonsensical version in the underlying HTML.
ShieldFont, as designers Isaque Seneda and Gabriel Abrucio write in a recent white paper, was made to offer web publishers "a practical opt-out from unauthorized AI training and [to] disrupt what is collected when that choice is ignored."
When is a horse a potato?
The font is based around ligatures, a long-standing feature of many fonts that is usually used to replace certain letter pairs with a more readable version when they're smushed up next to each other. With ShieldFont, though, those ligatures are instead used to replace entire words with others in an attempt to destroy the text's value to scrapers. This substitution only happens when the font engine draws the page on screen, meaning scrapers that simply download plaintext source code get an altered version that end users never see.
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