Abstract: Information security processes, systems, and machines for authenticating users, wirelessly detecting a user's local devices, calculating a trust score based on the local devices, and setting a transaction limit are disclosed. An ATM or POS machine can read a card, authenticate a user, and wirelessly read MAC or other unique hardware addresses for one or more of the user's local devices. Trust scores can be calculated based on the number of local devices that are detected in relation to the number of the user's devices that are registered, the historical presence of the user's devices during prior transactions, historical usage of the ATM or POS machine, geolocating, biometric authentication(s), etc. Dynamic transaction limits, types, and rights may be set for transactions corresponding to the trust score values. Transactions may be conducted wholly or partially in a contactless fashion.