Preventing unauthorized access to secured information systems based on contextual login information

A computing platform may receive, from a client server, a request to authenticate a user to a user account, as well as device selection input selecting a registered device to receive a one-time passcode. The computing platform may evaluate the device selection input based on contextual login information associated with the user account, determine that the registered device selected to receive the one-time passcode is out of context, and execute a security procedure. Based on validating a response to the security procedure, the computing platform may generate a one-time passcode and may send the one-time passcode to the registered device selected to receive the one-time passcode. Thereafter, the computing platform may receive one-time passcode input, validate the one-time passcode input, generate a validation message directing the client server to provide the user with access to the user account, and send the validation message to the client server.