Method and system for identifying a compromised point-of-sale terminal network

A computer-implementable method of identifying a compromised Point-of-Sale (POS) terminal network, the method being executable by a processor, the method comprising:

• receiving, by the processor, identifiers of a plurality of compromised geographical areas;
• identifying, by the processor, in a given compromised geographical area of the plurality of compromised geographical areas, at least one respective POS terminal network of a plurality of POS terminal networks,
• the at least one respective POS terminal network including a plurality of POS terminals in the given compromised geographical area associated with a respective entity;
• generating, by the processor, a potentially compromised POS terminal networks database including the plurality of POS terminal networks;
• determining, by the processor, for the at least one respective POS terminal network, a plurality of compromise parameters, the plurality of compromise parameters including at least one of:
• a frequency of occurrence of POS terminal networks associated with the respective entity in the plurality of compromised geographical areas;
• and
• a probability of occurrence of the POS terminal networks associated with the respective entity in the plurality of compromised geographical areas;
• determining, by the processor, based on the plurality of compromise parameters, a respective compromise probability value for the at least one respective POS terminal network;
• ranking, by the processor, the plurality of POS terminal networks according to respective compromise probability values associated therewith, thereby generating a ranked list of POS terminals networks;
• determining, by the processor, a top-ranked POS terminal network in the ranked list of POS terminal networks as being the compromised POS terminal network;
• and
• storing, by the processor, in the potentially compromised POS terminal networks database, data indicative of the top-ranked POS terminal network being compromised.