The act of acquiring a digital file used in two-factor authentication, specifically associated with RSA SecurID, allows users to generate time-based one-time passwords (TOTP). This digital file, often referred to as an SDTID file or equivalent, functions in conjunction with a PIN or other authentication factor to grant access to protected resources. As an example, after initial setup involving this acquisition, a user attempting to log into a corporate VPN would enter their username, PIN, and the code displayed on their RSA SecurID software or hardware token.
This process significantly enhances security by adding an extra layer of verification beyond a static password. The one-time password generated by the token is only valid for a short period, typically 30 or 60 seconds, mitigating the risk of password compromise through phishing or other attacks. The implementation of this technology has its roots in early multi-factor authentication solutions, addressing the growing need for secure remote access and data protection within organizations facing increasingly sophisticated cyber threats.