How Tech Changed Authentication

As applications evolved from locally-hosted systems to internet-based Software as a Service (SaaS) models, ensuring secure access has become increasingly complex and crucial. Historically, in-house apps required straightforward security measures, but modern SaaS environments host multitudes of clients and their data, necessitating robust security strategies. Traditional username and password authentication remains prevalent due to its simplicity, although it poses risks like password reuse across services. To enhance security, methods such as social authentication, which leverages existing accounts from platforms like Facebook or LinkedIn, and passwordless authentication, which uses one-time passcodes or magic links, are increasingly adopted. Multifactor authentication (MFA) further strengthens security by requiring an additional verification step beyond basic credentials. The shift towards biometrics, such as fingerprint or retina scans, is also gaining traction with advancements in device technology, offering a more secure and user-friendly authentication experience.