Companies spy on your email with invisible images – here’s how to stop them

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If you’re getting marketing emails in your inbox, you should know that the companies are likely using the messages to spy on you. They’re using a technology developed for email called tracking pixels (invisible images) which lets companies analyze how and when you’ve interacted with their emails. They can then use the information to fine-tune marketing campaigns and even link the data to other information they have on you.

This is how email marketing has worked for years, with many users unaware that they’re being tracked by images so small the naked eye can’t spot them. The good news is that email apps are getting better at protecting you against tracking pixels. And there are third-party services that can help with additional layers of protection.