The Securities and Exchange Commission acknowledged its public-company filing system, "EDGAR," was hacked last month, according to a statement on cybersecurity from SEC Chairman Jay Clayton.
The incident, which Mr. Clayton said created an opportunity for cyberattackers to profit through illicit trading, was initially detected in 2016. The ongoing investigation reopened in August.
"Specifically, a software vulnerability in the test filing component of our EDGAR system, which was patched promptly after discovery, was exploited and resulted in access to nonpublic information. We believe the intrusion did not result in unauthorized access to personally identifiable information, jeopardize the operations of the Commission or result in systemic risk," Mr. Clayton wrote.
Mr. Clayton is scheduled to testify before the Senate Banking Committee Sept. 26, according to Politico.
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