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Stop Using Your Face or Thumb to Unlock Your Phone
(gizmodo.com)
This is a most excellent place for technology news and articles.
iPhones also have this feature, for a long time now:
https://ios.gadgethacks.com/how-to/keep-law-enforcement-out-your-iphone-your-privacy-intact-0194999/
Rather irresponsible of the article to not point out these features on Android and iPhone. Did a cop or government official write that article?
Most likely just a written with little real tech experience.