LogMeOnce Passwordless MFA is an authentication solution that enables users to log in to accounts and systems without traditional passwords. It supports multiple passwordless authentication methods, including selfie photo login, QR code login, biometric fingerprint login, Face ID, and PIN-based login via mobile device. The selfie photo login method uses patented technology where a user captures a photo to authenticate. Each photo is discarded after 60 seconds or upon use, and contextual scene data adds uniqueness to each authentication event. The QR code login generates a randomly assigned, single-use QR code that is scanned from a computer monitor using a mobile device. Each code is discarded upon use or after 60 seconds. Biometric login leverages fingerprint readers on devices or uses a trusted mobile device as authentication hardware when the primary device lacks biometric hardware. Face ID login uses the mobile device camera for facial recognition, with automatic two-factor authentication (2FA) built in. PIN-based login allows users to authenticate by entering a PIN on their mobile device rather than typing a password. The product is designed for multiple audiences: enterprise workforces, customers requiring secure access, government agencies with compliance requirements, and individual users. It integrates with Identity Providers (IdPs) to make them passwordless MFA-capable. The solution is built on zero trust adaptive authentication principles, providing configurable security policies, audit trail logging, and compliance support. It is available as a free download for individual use on Android and iOS platforms.