A hack at global accounting firm Deloitte disclosed in September compromised a server with emails of some 350 clients, including U.S. government agencies and large corporations, the Guardian reported on Tuesday, citing unnamed sources.
Deloitte disputed the story, saying “very few” clients were affected” in a statement emailed to Reuters. Deloitte told the Guardian that it believed the hack had only “impacted” six clients and that it believed the attack on its systems, which began a year ago, was now over. It declined to identify the clients that were impacted.
“We take any attack on our systems very seriously,” Deloitte said in its statement to Reuters. “We are confident that we know what information was targeted and what the hacker actually did.”
Update: (Oct. 10, 2017) This article was updated with a comment from Deloitte.
Update: (Oct. 11, 2017) This article was updated to clarify that Deloitte has not identified the clients that were impacted.