säkerhetstoken

A säkerhetstoken, or security token, is a physical or digital device used to authenticate a user's identity. It acts as a form of proof of possession, complementing other authentication factors like passwords or biometrics. The primary purpose of a security token is to enhance the security of access to systems, data, or physical locations.

There are various types of security tokens. Hardware tokens, often small devices resembling USB drives or key fobs, generate one-time passwords (OTPs) or cryptographic keys. Software tokens, on the other hand, are applications installed on smartphones or computers that perform similar functions. These can include generating OTPs, receiving push notifications for approval, or storing digital certificates.

The mechanism of operation typically involves the token interacting with an authentication server. When a user attempts to log in, they present their token, which then communicates with the server to verify its authenticity. This verification process ensures that only authorized individuals can gain access. Security tokens are widely used in multi-factor authentication (MFA) strategies to significantly reduce the risk of unauthorized access due to compromised credentials. They are essential in protecting sensitive information in various sectors, including finance, healthcare, and government.