Passwords, while familiar, can be leaked or guessed. SMS-based multifactor phone number philippines authentication (MFA)—while easy to set up since most people can receive messages—is vulnerable to SIM swap attacks . Even authentication apps like Authy or Google Authenticator—while more secure than SMS—rely on a shared secret key that is portable (often shared via a QR code) and not tied to a single device. Push authentication is both secure and user-friendly. The user only needs to click “allow” or “deny” to securely authenticate a connection or transaction.
Push authentication uses public key cryptography to generate a key pair on the user’s device: the private key never leaves the mobile device and the public key is sent to the company’s authentication servers. This provides protection against shared key leakage and is not subject to man-in-the-middle attacks . Push offers a high enough level of protection that businesses are using it for passwordless authentication – replacing passwords entirely instead of just adding a second layer with two-factor authentication.
This method requires additional development, which is why Twilio released its Verify Push API to help businesses quickly and securely deploy authentication in their applications. Stay tuned for web application support. How does Verify Push authentication work? Verify Push takes care of: Client SDKs for mobile operating systems (iOS and Android) API layers to generate and verify authentication challenges Together, they transform the end user's mobile device into a secure key. Diagram of how push authentication works.