If you've ever felt like Facebook always knew where you were, no matter tweaking settings in your mobile programs to prevent the program from accessing that place, you're not the only one. Facebook tracks your business when you use its programs and is used to show targeted ads to customers. Without accessing specific, precise location data on your smartphone, Facebook uses data about your surfing habits such as IP address, Wi-Fi and Bluetooth systems to determine where you are and to place relevant ads in its programs. And all of this happens as Facebook tries to provide users with the belief that they can control if they discuss site information with Facebook.
Computer Science at the University of Southern California has explained how Facebook can do this, in incredible detail on Moderate. Although the Location Services setting was changed to "Never" in iPhone for Facebook, and Location History was removed and disabled, Facebook continued to display ads.
They claim that Facebook cannot gather detailed information about Facebook from other interactions using Facebook or its other programs such as WhatsApp, Instagram, or Facebook Messenger. Location tracking is turned off for all ads and does not share photos with Facebook location info. Nevertheless, location-related ads keep popping up.
The report explains that Facebook does not monitor its place, nor can it be ready to give users controls to stop social media using IP addresses or Wi-Fi information to find users.
Some may argue that this is the standard procedure for companies offering online services "for free", with advertisements displayed in the background of what you are doing. And Facebook needs to earn money to keep delivering its services. Besides, many web users have no problem using Facebook to move data about their places to display ads. However, there may be instances where people may abuse this feature as Facebook allows its ads to be targeted to a minimal geographic area.
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Facebook could change its location tracking policy to give users control over the information they choose to share later if they choose to. Or lawmakers in some markets may force him to overcome these difficulties. But if you are concerned that Facebook is monitoring your place, the only thing you can do right now would be to eliminate all Facebook apps from your phone and stop using it altogether. Of course, this isn't always a workable choice with some software, especially chat programs like WhatsApp and Instagram. The latter displays ads, although the former will deliver advertisements to customers next year.
Facebook has verified Gizmodo that it monitors users by collecting IP addresses in addition to information from check-ins and other articles.