Foreign media: Claude has given rise to a watermark removal scam after being watermarked
Forbes
1h ago
Ai Focus
After Anthropic added a text watermark to Claude, the number of related "watermark removal" applications increased rapidly. Foreign media reported that many of these applications engaged in false advertising, and some may even contain malware.
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Anthropic 本周宣布,开始为 Claude 生成的文本加入隐形水印。外媒称,这一做法很快带动了另一类工具升温:号称能清除 AI 水印的应用与服务。

文章认为,问题不只在于需求上升,更在于大量产品借机夸大能力。一些工具宣称可以稳定移除水印,另一些则把“去识别”“改写”“降 AI 痕迹”混为一谈,甚至可能夹带恶意软件,利用用户急于规避检测的心理牟利。

水印藏在词语选择里

按照 Anthropic 的说明,这类文本水印并不是插入特殊字符,也不是加入肉眼可见的标记,而是在生成过程中调整词语选择,形成可被特定工具识别的统计模式。文本表面看起来正常,读者通常无法直接判断是否带有水印。

文章举例称,一句话往往有多种近义表达。模型在生成时,可能按特定概率选择某一类替代表达。单看一句话很难发现异常,但把整段文本放在一起分析,就可能识别出这种模式。

改写和拼接都会削弱效果

外媒指出,文本水印与图片水印不同,稳定性更依赖原文结构。只要用户对内容进行改写、替换词语、拼接进更长文本,或再次交给其他 AI 重写,原有统计特征就可能被打散。

这意味着,很多“去水印”并不一定依赖专门技术。普通编辑、本地改写,甚至二次生成,都可能让检测结果下降。也正因如此,部分商家把常见改写功能包装成“专业去水印”,宣传与实际能力并不相称。

灰产借机扩张

文章认为,随着更多模型服务商尝试给 AI 输出加标记,围绕“去水印”的灰色服务还会继续增加。风险主要有三类:

  • 虚假承诺,宣称可彻底清除所有模型水印
  • 混淆概念,把改写工具包装成检测规避工具
  • 借软件下载或插件安装投放恶意程序

外媒的核心判断是,文本水印本身并非牢不可破,而围绕它形成的营销和欺诈,可能比技术本身更快扩散。对用户来说,眼下更现实的问题不是“能否完全去除”,而是如何识别夸大宣传和可疑软件。

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