Facebook may be in the hot seat right now for its collection of personal data without our knowledge or explicit consent, but as The Wall Street Journal points out, "Google is a far bigger threat by many measures: the volume of information it gathers, the reach of its tracking and the time people spend on its sites and apps." From the report (alternative source):
It's likely that Google has shadow profiles (data the company gathers on people without accounts) on as at least as many people as Facebook does, says Chandler Givens, CEO of TrackOff, which develops software to fight identity theft. Google allows everyone, whether they have a Google account or not, to opt out of its ad targeting, though, like Facebook, it continues to gather your data. Google Analytics is far and away the web's most dominant analytics platform. Used on the sites of about half of the biggest companies in the U.S., it has a total reach of 30 million to 50 million sites. Google Analytics tracks you whether or not you are logged in. Meanwhile, the billion-plus people who have Google accounts are tracked in even more ways. In 2016, Google changed its terms of service, allowing it to merge its massive trove of tracking and advertising data with the personally identifiable information from our Google accounts.
Google uses, among other things, our browsing and search history, apps we've installed, demographics like age and gender and, from its own analytics and other sources, where we've shopped in the real world. Google says it doesn't use information from "sensitive categories" such as race, religion, sexual orientation or health. Because it relies on cross-device tracking, it can spot logged-in users no matter which device they're on. Google fuels even more data harvesting through its dominant ad marketplaces. There are up to 4,000 data brokers in the U.S., and collectively they know everything about us we might otherwise prefer they didn't -- whether we're pregnant, divorced or trying to lose weight. Google works with some of these brokers directly but the company says it vets them to prevent targeting based on sensitive information. Google also is the biggest enabler of data harvesting, through the world's two billion active Android mobile devices.
Originally Posted by Zippyjuan
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