A multifactor authentication system onboard a vehicle including at least one processor, a first database, a second database, and one or more protected computer systems is provided. The at least one processor is programmed to receive, from a user, a request for access to the one or more protected computer systems, wherein the request contains authentication information including a first authentication factor and a second authentication factor, retrieve first factor authentication data associated with the user from the first database, compare the first factor authentication data with the received first authentication factor to determine if there is a match, retrieve the second factor authentication data associated with the user from the second database, compare the second factor authentication data with the received second authentication factor to determine if there is a match, and grant access to the one or more protected computer systems if all of the comparisons match.