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Passkey technology raises concerns over user control, experts warn

Passkeys, a next-generation login method positioned as a replacement for passwords, could over time limit users\' choice of devices and software, raising concerns that security tools may be used to control users. A blogger cited by Japan\'s Gigazine pointed to attestation, which can verify the maker and type of the authentication device, as a potential mechanism for restricting access. Others countered that such limits are not widespread and cannot be imposed retroactively.