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Google will now make passkeys the default for personal accounts
(arstechnica.com)
This is a most excellent place for technology news and articles.
Keys are stored in the equivalent of iOS’s Secure Enclave (actual name is implementation specific: ARM’s TrustZone, Samsung’s KNOX, Pixel’s Titan M, etc): https://www.howtogeek.com/387934/your-smartphone-has-a-special-security-chip.-heres-how-it-works/