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Malware in Webpages

Other examples of proprietary malware

Malware means software designed to function in ways that mistreat or harm the user. (This does not include accidental errors.)

Malware and nonfree software are two different issues. The difference between free software and nonfree software is in whether the users have control of the program or vice versa. It's not directly a question of what the program does when it runs. However, in practice nonfree software is often malware, because the developer's awareness that the users would be powerless to fix any malicious functionalities tempts the developer to impose some.

This page lists web sites containing proprietary JavaScript programs that spy on users or mislead them. They make use of what we call the JavaScript Trap. Of course, many sites collect information that the user sends, via forms or otherwise, but here we're not talking about that.

If you know of an example that ought to be in this page but isn't here, please write to <webmasters@gnu.org> to inform us. Please include the URL of a trustworthy reference or two to serve as specific substantiation.

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