The financial institutions involved in a lawsuit against Target Corp. filed a motion this week to request that certain documents related to its 2013 data breach be unsealed.

The financial institution plaintiffs–which include CSE FCU, Lake Charles, La.–asked the U.S. District Court District of Minnesota to force the retail giant to disclose certain documents pertaining to the 2013 breach of consumers’ personal information and to its security processes (CUInfoSecurity.com July 28).

According to the filing, the plaintiffs’ attorneys argue that Target’s “blanket confidentiality designation” with regard to the documents it has submitted “is absolute and improper.” Counsel noted that the information contained in the documents does not concern protected confidential trade secrets or commercial information. Most of the documents are historical and pertain to Target’s cybersecurity team and practices, it added.

Target’s data security breach compromised 40 million debit and credit card numbers and the personal information of as many as 70 million customers. CUNA’s 2014 research found that credit unions incurred $30.6 million in costs related to the breach–not including actual fraud costs.

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