A judicial branch agency tasked with supporting federal courts announced Thursday the federal judiciary's electronic case filing system has faced escalating cyberattacks, prompting efforts to enhance security.

The Administrative Office of the U.S. Courts, which manages the system, said in a news release a series of "sophisticated and persistent" attacks have led to increased efforts to strengthen protections for sensitive case documents and block future attacks.

The agency noted the "vast majority" of documents filed with the system are not confidential, but some filings contain important information sealed from public view.

"These sensitive documents can be targets of interest to a range of threat actors," the release reads. "To better protect them, courts have been implementing more r

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