City of Columbus sues man after he discloses severity of ransomware attack
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A judge in Ohio has issued a temporary restraining order against a security researcher who presented evidence that a recent ransomware attack on the city of Columbus scooped up reams of sensitive personal information, contradicting claims made by city officials.
The order, issued by a judge in Ohio’s Franklin County, came after the city of Columbus fell victim to a ransomware attack on July 18 that siphoned 6.5 terabytes of the city’s data. A ransomware group known as Rhysida took credit for the attack and offered to auction off the data with a starting bid of about $1.7 million in bitcoin. On August 8, after the auction failed to find a bidder, Rhysida released what it said was about 45 percent of the stolen data on the group’s dark web site, which is accessible to anyone with a TOR browser.
Dark web not readily available to public—really?
Columbus Mayor Andrew Ginther said on August 13 that a “breakthrough” in the city’s forensic investigation of the breach found that the sensitive files Rhysida obtained were either encrypted or corrupted, making them “unusable” to the thieves. Ginther went on to say the data’s lack of integrity was likely the reason the ransomware group had been unable to auction off the data.
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