USERS of Google's email service Gmail should have no "legitimate expectation" that their emails will remain private, the company has said in a submission to a US court.
Consumer Watchdog (CW), a US pressure group, described Google's statement as a "stunning admission" of the extent to which internet users' privacy is compromised.
The document was lodged by Google in a California court in response to a lawsuit that accused the web giant of breaking US laws when it scans emails in order to target adverts to users.
Google, which has more than 425 million Gmail users worldwide, said in its submission: "Just as a sender of a letter to a business colleague cannot be surprised that the recipient's assistant opens the letter, people who use web-based email today cannot be surprised if their communications are processed by the recipient's ECS [electronic communications service] provider in the course of delivery."
Citing other case law, it adds: "Indeed, a person has no legitimate expectation of privacy in information he voluntarily turns over to third parties."
CW spokesman John Simpson said: "Sending an email is like giving a letter to the Post Office. I expect the Post Office to deliver the letter based on the address written on the envelope.
"I don't expect the mail carrier to open my letter and read it. When I send an email, I expect it to be delivered to the intended recipient with a Gmail account based on the email address; why would I expect its content will be intercepted by Google and read?"
Last night, John Whittingdale, chairman of the Culture, Media and Sport committee in the UK, said while companies should make their terms and conditions transparent, email and social media users needed to be aware of what they were signing up to when using free services.
Mr Whittingdale said when UK internet users sign-up to terms and conditions online they need to better understand how their information might be used.
"Once consumers are fully aware in the vast majority of cases they would be happy. But it needs to be clearer and people need to be better informed and it needs to be more explicit," he said.
In the California suit against Google, the plaintiffs claim that the company "unlawfully opens up, reads, and acquires the content of people's private email messages".
In its motion to dismiss the case, Google said the plaintiffs were making "an attempt to criminalise ordinary business practices" that have been part of Gmail's service since its introduction.
In the submission, which was filed in July but has only just been unearthed, Google said "all users of email must necessarily expect that their emails will be subject to automated processing".
But, it added, the practice of targeted advertising was industry wide.
It said: "If plaintiffs used Yahoo mail, they would have known that automated scanning of emails to deliver advertising is a common industry practice not limited to Gmail."
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