Mohamed Sharaf

When “invoice.zip” is a website, not a file

The new .zip and .mov domains make links that look like file names. Teach people to check where a link really goes.

· 1 min read

Google has opened the .zip and .mov top-level domains to everyone. So invoice.zip or update.mov can now be a real website, and chat apps and email clients turn them into links automatically.

You can see the problem. A message says “the report is in report-2023.zip”, and the link opens a site someone registered last night, maybe with a download waiting.

Some security researchers have also shown links where the visible text looks like a normal GitHub download and the real destination is a .zip domain, using lookalike slash characters.

What helps:

  • Check where a link really goes before clicking: hover on a computer, long-press on a phone.
  • Files come as attachments or from your known storage, not as links to strange domains.
  • If your company doesn’t need them, block .zip and .mov domains at the web filter or DNS level.
  • Watch for new registrations that look like your brand.

Old habit, new reason: the text of a link isn’t the link.

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