What is Two-Factor Authentication? (2FA)
Why the open web links it
Explains how two-factor authentication enhances account security by adding a second verification layer.
Linked by 23 independent sites, 10 of them widely read in the 2026-10 crawl of the open web, including slides.com, uidaho.edu, gvsu.edu, georgiasouthern.edu, sonoma.edu.