What type of transactions typically require MSBs to report suspicious activity?

Transactions that typically require Money Services Businesses (MSBs) to report suspicious activity usually involve amounts that exceed a specified threshold. The requirement to report is anchored in the regulatory framework of the Bank Secrecy Act (BSA), which emphasizes the detection and reporting of potentially illicit activities, such as money laundering or fraud.

When transactions surpass established limits, they are often scrutinized more closely to identify potential suspicious patterns. This threshold is designed to focus resources efficiently on significant transactions that may warrant further investigation. Therefore, MSBs are obliged to implement systems to monitor and report on these higher threshold transactions, ensuring compliance with the regulatory requirements aimed at preventing financial crimes.

The other transactional characteristics mentioned in the other options—such as all transactions irrespective of size, only international transactions, or transactions specifically involving related businesses—do not align with the practical and regulatory expectations placed on MSBs. Regulations focus on the importance of identifiable thresholds to effectively monitor and report suspicious activities while ensuring that compliance resources are utilized wisely.