What type of authentication does an administrator provide when they combine a password with a gesture on a touchscreen?

The scenario describes an administrator using a password along with a gesture on a touchscreen as a means of authentication. This approach exemplifies multifactor authentication because it employs two distinct factors: something the user knows (the password) and something the user has or does (the gesture on the touchscreen).

Multifactor authentication enhances security by requiring more than one verification method, making it significantly harder for an unauthorized user to gain access. In this case, even if an attacker were to obtain the password, they would also need to replicate the specific gesture to succeed. This layered security approach is essential in protecting sensitive data and systems from unauthorized access.

Other authentication methods mentioned, such as token-based authentication, are reliant on physical devices or software tokens that generate codes, while single sign-on allows users to access multiple services with a single set of credentials. Static authentication does not incorporate dynamic elements like gestures, making it less secure in comparison to multifactor approaches that combine different modalities for authentication.