Saturday, September 30, 2023

Online privacy for Chrome and other browsers

Google has recently implemented a gigantic scam to harvest personal information and monetize it. The chances are recent and touted by Google as for privacy, even thought it is for loss of privacy. The Register writes:

The Electronic Frontier Foundation has urged folks to switch off several Privacy Sandbox settings in Google Chrome to mask their online habits, or to consider switching to Mozilla Firefox or Apple Safari.

Chrome's Privacy Sandbox is neither private – preventing one from being observed – nor a sandbox – an environment in which code can be executed in isolation. Rather it's a suite of advertising, analytics, anti-spam, and anti-tracking technologies. The goal for some of these is to replace third-party cookies.

Third-party cookies, because they harm privacy by permitting people to be tracked online, are scheduled to be phased out next year in Chrome. But the online advertising industry isn't entirely sold on Google's replacement technology, and it may be that antitrust cases or other regulatory pressure will lead websites away from Privacy Sandbox and toward industry-backed ad tech like IAB's Seller Defined Audiences.

Google says its Privacy Sandbox has five major goals: fighting spam and fraud on the web; showing relevant ads and content; measuring digital ads; strengthening cross-site privacy boundaries; and limiting covert tracking.

"Topics is a response to pushback against Google’s proposed Federated Learning of Cohorts (FLoC), which we called 'a terrible idea' because it gave Google even more control over advertising in its browser while not truly protecting user privacy," said Thorin Klosowski, EFF security and privacy activist, in a web essay.

Mozilla and Apple have rejected Topics in Firefox and Safari respectively due to privacy concerns. And earlier this year, the Technical Architecture Group (TAG) of the World Wide Web Consortium (W3C), the web's technical body, panned Topics for being opaque and diminishing user control.

"Google referring to any of this as 'privacy' is deceiving," said the foundation's Klosowski.

"Even if it's better than third-party cookies, the Privacy Sandbox is still tracking, it's just done by one company instead of dozens. Instead of waffling between different tracking methods, even with mild improvements, we should work towards a world without behavioral ads."

Klosowski explains that for those who won't give up Chrome there's a way to opt out of Topics, of ad retargeting, and of giving advertisers storage space in your browser for ad performance data. Doing so requires navigating through Chrome's three-dot icon to the ad privacy settings page: (⋮) > Settings > Privacy & Security > Ad Privacy. Or copy this URL chrome://settings/adPrivacy into the address bar and press enter.

Once there, he advises disabling Ad topics, Site-suggested ads, and Ad measurement.  
The EFF also makes Privacy Badger, a browser extension for blocking tracking scripts that was just recently updated to remove tracking links. 
We released a new version of Privacy Badger that updates how we fight “link tracking” across a number of Google products. With this update Privacy Badger removes tracking from links in Google Docs, Gmail, Google Maps, and Google Images results. Privacy Badger now also removes tracking from links added after scrolling through Google Search results.

Link tracking is a creepy surveillance tactic that allows a company to follow you whenever you click on a link to leave its website. As we wrote in our original announcement of Google link tracking protection, Google uses different techniques in different browsers. The techniques also vary across Google products. One common link tracking approach surreptitiously redirects the outgoing request through the tracker’s own servers. There is virtually no benefit 1 for you when this happens. The added complexity mostly just helps Google learn more about your browsing.

It's been a few years since our original release of Google link tracking protection. Things have changed in the meantime. For example, Google Search now dynamically adds results as you scroll the page ("infinite scroll" has mostly replaced distinct pages of results). Google Hangouts no longer exists! This made it a good time for us to update Privacy Badger’s first party tracking protections.
Privacy Badger is downloadable here. The commentary at that site: 
Privacy Badger automatically learns to block invisible trackers. Instead of keeping lists of what to block, Privacy Badger automatically discovers trackers based on their behavior. Privacy Badger sends the Global Privacy Control signal to opt you out of data sharing and selling, and the Do Not Track signal to tell companies not to track you. If trackers ignore your wishes, Privacy Badger will learn to block them. 

 Besides automatic tracker blocking, Privacy Badger replaces potentially useful trackers (video players, comments widgets, etc.) with click-to-activate placeholders, and removes outgoing link click tracking on Facebook and Google, with more privacy protections on the way. To learn more, see our FAQ at https://privacybadger.org/#faq


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