But if you carry cookies from other Google services, your activity can be correlated or “fingerprinted” from associated products such as Google Maps and YouTube. Much of the information collected by Gmail and shared with advertisers is metadata – data about data. And it still scans emails to facilitate so-called smart features such as the ability to add holiday bookings or deliveries straight to your calendar, or to autocomplete suggestions.Įvery way you interact with your Gmail account can be monitored, such as the dates and times you email at, who you are talking to, and topics you choose to email about, says Rowenna Fielding, founder of privacy consultancy Miss IG Geek.
Gmail is by far the most popular email service, with more than 1.5 billion active users, compared with 400 million using Microsoft Outlook and 225 million signed up to Yahoo Mail.Īlthough Google stopped scanning email content to tailor ads in 2017, last year the company started showing shopping ads in Gmail. More data is used for analytics – in Google’s words, “to build better services” – including purchase history, location, email address, photos and search history.
According to the label, those that grant the appropriate permission to the iOS Gmail app can expect Google to share information including their approximate location, user ID – an identifier used to anonymously track them – and data about the ads they have viewed online with advertisers.
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