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Why your smartphone's fingerprint scanner isn't as secure as you might think

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Gary Johnson
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Smartphone fingerprint scanners are less secure than we are led to believe, according to researchers who have developed “master fingerprints” capable of tricking the sensors.

Apple says that the Touch ID scanner used on the iPhone has only a one in 50,000 chance of matching with someone else’s finger.

Although the researchers said they had only tested their findings in computer simulations, rather than on real smartphones, they warned that the technology to create artificial physical fingerprints was improving rapidly.

This will allow you to create a longer and more complex passcode with upper and lowercase letters, numbers and other symbols

You can tell your phone to delete all data if it thinks someone is trying to break in.

Go to settings, then “Touch ID & passcode” and set “Allow access when locked” on Siri to Off.

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Gary Johnson
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