Google Chrome's private incognito mode leaks way more personal data than you might think

The privacy feature in the Chrome web browser claims to let people 'browse privately'

Anthony Cuthbertson
Wednesday 22 August 2018 12:13 BST
Comments
Incognito mode in Chrome claims to let users browse the web privately without Google collecting their information
Incognito mode in Chrome claims to let users browse the web privately without Google collecting their information (AFP/Getty Images)

Your support helps us to tell the story

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.

At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.

The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.

Your support makes all the difference.

Google could continue to collect personal data from users, even if they use the incognito mode in the Chrome web browser, a study has found.

A researcher from Vanderbilt University in Nashville, Tennessee, discovered that Google could retroactively link a person's private browsing to the usernames and account information they use online.

"While such data is collected with user-anonymous identifiers, Google has the ability to connect this collected information with a user's personal credentials stored in their Google Account," the study states.

The study, commissioned by the trade organisation Digital Content Next, explained that a person's web activity on sites that run ads from Google's online ad marketplace can be connected through the anonymized cookies to their YouTube, Gmail or other Google account.

When using incognito mode in Google Chrome, users are greeted with the message: "Now you can browse privately, and other people who use this device won't see your activity."

Google claims that it will not save browsing history, cookie, site data or information entered in forms, however it warns that browsing activity may still be visible to websites, internet service providers, or the school or employer that controls the network.

More than half of all web visitors use Google Chrome, with the search giant revealing in 2016 that there are more than 2 billion Chrome installs in active use across desktop and mobile.

Professor Douglas Schmidt, who carried out the research, said the extent and magnitude of Google's passive data collection has "largely been overlooked" by past studies on the topic.

"Google utilises the tremendous reach of its products to collect detailed information about people's online and real-world behaviours, which it then uses to target them with paid advertising," Professor Schmidt wrote in the study.

"Google's revenues increase significantly as the targeting technology and data are refined."

(File photo
(File photo (REUTERS)

The study comes as Google faces a lawsuit regarding its location tracking practices, which the plaintiff alleges involves the tracking of millions of people without their consent.

The lawsuit claims that Google violates people's privacy by falsely assuring them that disabling their 'location history' feature on their iPhone or Android smartphone will prevent them from being tracked.

"There are a number of different ways that Google may use location to improve people's experience, including: Location, History, Web and App Activity, and through device-level Location Services," a spokesperson for Google said when revelations of the tracking feature first emerged.

“We provide clear descriptions of these tools, and robust controls so people can turn them on or off, and delete their histories at any time.”

Google has since updated the 'help section' on its website to make it clear that some data is still collected even when the location history feature is switched off.

Join our commenting forum

Join thought-provoking conversations, follow other Independent readers and see their replies

Comments

Thank you for registering

Please refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in