Fingerprint unlocking isn’t just for your phone New smart locks are putting your door’s security at your fingertips.

Computers aren’t just getting smarter, they’re studying us more closely too. Whether it’s in the name of public safety, fraud protection or simple convenience, we’re feeding AI systems details that identify us and track our comings and goings. This is part of a CNET special report exploring the benefits and pitfalls of facial recognition. Equipped with electronic ears, eyes and brains, a sea of devices now monitor human activity and characteristics. The list includes everything from smart speakers, laptops and phones, to even doorbells and locks. You may not have noticed this trend, but it’s real, and growing. CNET has spent the last two...

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