What should a financial institution do when it receives a subpoena for information on a client's account?

Adjusting the client's risk score and closing the case does not address the legal obligation imposed by the subpoena. This choice neglects the need for compliance with the law, which requires the institution to respond to the subpoena instead of terminating the case based on an internal assessment.

While filing a SAR may be appropriate in some contexts, it is not a substitute for responding to the subpoena itself. The subpoena represents a direct legal request for information, and failing to fulfill that request could lead to legal repercussions for the institution.

Closing the client's account and notifying them of the subpoena is inappropriate and does not fulfill the institution's legal obligations. This action could be seen as obstructive and may have negative legal implications, as the institution must provide the information requested by the subpoena rather than terminating the relationship.