Check the permissions you’ve given the apps on your phone, and be mindful of permissions to access your microphone. However, you can restrict your devices from listening. You can’t stop ultrasonic beacons from emitting sound frequencies around you. Here’s how to reduce cross-device tracking: However, the good news is that you can take several steps to limit cross-device tracking and gain more control over your privacy. The idea of your devices tracking you without your knowledge and communicating with one another to show you targeted advertising is unnerving. How can you reduce cross-device tracking? Coincidence? No, just highly advanced and elaborate marketing. You pick up the phone, go on social media, and see the same ad you’ve just seen on TV. While the ad plays, your phone’s microphone listens to the beacons (if it has the right permissions). Without you knowing, the TV ad contains embedded ultrasonic beacons. Humans can’t hear these sounds because their frequency is too high (generally above 18 kHz), but they can be detected by various smart devices (like your phone or laptop).įor example, you may be watching TV when an ad for toothpaste comes on. Perhaps the most concerning approach is using ultrasonic beacons - inaudible sounds with encoded data through which a listening device can receive information. However, cross-device tracking is questioned by cybersecurity experts because of the lack of transparency and privacy.Ĭross-device tracking involves several techniques - such as cookies, tracking pixels, and fingerprinting - linking user activity across multiple devices. Marketers use cross-device tracking to create user profiles across their devices, helping them understand the customer better and target them more effectively. As an Amazon Associate and affiliate Spending Lab earns from qualifying purchases.Cross-device tracking is a marketing strategy that tracks users across multiple devices, such as their phones, smart TVs, tablets, and personal computers. Spending Lab earns commissions from purchases made using the links provided.Ībout Spending Lab: Spending Lab research and report on online sales events. Looking for more deals? Click here to enjoy the full range of active deals at Walmart’s Black Friday sale and click here to see Amazon’s live Black Friday deals.
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