Google has introduced passkeys, an alternative to passwords for security and presering privacy. Dan Goodin writes: “My recent feature on passkeys attracted significant interest, and a number of the 1,100-plus comments raised questions about how the passkey system actually works and if it can be trusted. In response, I’ve put together this list of frequently asked questions to dispel a few myths and shed some light on what we know—and don’t know—about passkeys.”