A security measure commonly employed on Android devices involves the automated sending of a single-use passcode. This passcode, delivered via SMS, serves as a temporary authentication token. As an example, upon attempting to log into an application or service, the user receives a short message containing a numeric or alphanumeric code. This code must then be entered to complete the login process.
This practice significantly enhances security protocols by introducing an additional layer of verification beyond a simple password. Its importance lies in its ability to mitigate the risk of unauthorized access, even if a password has been compromised. The adoption of this technology reflects an increasing awareness of the need for robust security measures in the digital age, evolving from simpler, less secure methods of authentication.
