阻止你的电子邮件窥探你

Every time you open an email, you could be revealing more than you realise. Robert Irvine explains how to block the hidden spies in messages you receive. The biggest threat to your email privacy is no longer spam, but tracking pixels. These tiny, invisible images – usually only 1x1 pixels in size – are inserted in the HTML code of the message, though they can also be hidden within other images and design elements. When you open a message, your email service asks to load images from a remote server, and that request tells the sender a lot of information about you. …