What is RSA SecureID?

RSA SecurID is a two-factor authentication (2FA) security token used to verify a user's identity. It's commonly used in corporate and government environments to provide an extra layer of security when logging into networks, applications, and VPNs. The SecurID token generates a pseudo-random number that changes at regular intervals (e.g., every 30 or 60 seconds). Users enter this number, along with their password, to authenticate.