Two-factor authentication serves as an additional layer of security and an effective method of protecting your Scalable account from unauthorised access. 

With two-factor authentication, two separate factors (knowledge & possession) are used to verify access to your account. The first factor is your username and password. The second factor is something that only you have access to, such as your smartphone. This means that an unauthorised person without the linked smartphone cannot access your account or make sensitive changes even if they know your username and password.