This blog post is not about passkey attestation. I have no strong opinion on the subject that has inspired a controversy over the past few days. However, the controversy did inspire me to write about passkeys again, and passkeys do currently feel like a trap to me, for reasons other than attestation. Admittedly, my reasons may be specific to the Apple ecosystem, as someone who stumbled into a career writing software for Apple devices, with no financially viable alternative. Three years ago I expressed skepticism of passkeys in a blog post, Passkeys: A loss of user control? Since then, the...