Abstract: Embodiments may include receiving a request including transaction data to evaluate a transaction as part of a charge path that processes at least a portion of the transaction; processing, by a set of blocking machine learning models, a portion of the transaction data to generate a set of blocking scores for the transaction; retrieving, from a memory, a set of card testing attack (CTA) scores associated with the transaction, the set of CTA scores indicative of an occurrence of a card testing attack, and the set of CTA scores retrieved based on the transaction data; adjusting a set of default blocking score thresholds based on the set of CTA scores to generate a set of adjusted blocking score thresholds; and determining to allow the transaction based on comparison of the set of blocking scores with the set of adjusted blocking score thresholds.

Abstract: Embodiments may include receiving a request including transaction data to evaluate a transaction as part of a charge path that processes at least a portion of the transaction; processing, by a set of blocking machine learning models, a portion of the transaction data to generate a set of blocking scores for the transaction; retrieving, from a memory, a set of card testing attack (CTA) scores associated with the transaction, the set of CTA scores indicative of an occurrence of a card testing attack, and the set of CTA scores retrieved based on the transaction data; adjusting a set of default blocking score thresholds based on the set of CTA scores to generate a set of adjusted blocking score thresholds; and determining to allow the transaction based on comparison of the set of blocking scores with the set of adjusted blocking score thresholds.

Abstract: Dual action magnetic brakes and related methods are provided. In one aspect, such a brake includes a housing, a rotatable shaft extending through the housing, and a braking assembly in the housing. The braking assembly includes a coil and a braking member. The coil can generate a magnetic field when energized with electrical current. The braking member, and one or more flexible members attached thereto, can move in response to the presence or absence of the magnetic field to facilitate rotation or non-rotation of the shaft.

Abstract: Dual action magnetic brakes and related methods are provided. In one aspect, such a brake includes a housing, a rotatable shaft extending through the housing, and a braking assembly in the housing. The braking assembly includes a coil and a braking member. The coil can generate a magnetic field when energized with electrical current. The braking member, and one or more flexible members attached thereto, can move in response to the presence or absence of the magnetic field to facilitate rotation or non-rotation of the shaft.