Observed arrival · 2026-10-31
IRL2FA’s two-device security simulator
A browser simulator runs two copies of IRL2FA firmware and lets you pair them over a modeled infrared link.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People exploring IR-based two-factor authentication
- Worth noticing
- The simulated link starts failing when devices move beyond about 9 cm or out of line of sight.
Field notes
The simulator exposes controls for distance, angle, and clock skew, with a shared UTC clock and options to speed up time. Its instructions also describe a simple mode that limits input to up and down and displays a caller’s name and expected word; leaving that mode requires holding the center control and entering the family PIN.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue