This guide provides solutions for errors of the type “Malicious site! The site has been reported as a malicious site and has been blocked based on your security preferences” ("STOP! This Website Can Harm Your Computer!" in English).

Preamble

• Today, the official wording used by browsers varies depending on the type of threat detected:
  • Firefox displays "Deceptive site!" for phishing sites, "Visiting this site could harm your computer" for sites that may infect the computer, and "This site may contain dangerous programs" for sites offering malware.
  • Google uses the wording "This site may harm your computer" in some warnings displayed in search results, while Chrome displays "Dangerous site" in its security warnings.‍

Who posted this message?

This error message or warning…

• … is NOT added by Infomaniak.
• … is generated based on Google's own data, using, in particular, https://www.stopbadware.org/.
• … may no longer appear directly because…
  • … you are no longer indexed by Google.
  • … you are using a browser that does not rely on Google's controls.

What to do?

If this does not concern the website you manage, please refer to Google's help page on this topic.

If the site is yours, please review the following advice:

• Check the source code of the published page: there is likely to be additional code compared to the pages that are still healthy; this may be a malicious iframe or some other inclusion…
• On the page in question, click on the "Why was this site blocked?" button and follow the instructions…
• Refer to the Google documentation on this subject.
• Monitor the vulnerability detection tool, which may resolve the issue in the meantime.