A hacker going by the name of NightLion apparently breached the backend servers at data leak monitoring service DataViper and exfiltrated data, including more than 8,200 databases, as an act of revenge against a security researcher who plans to reveal the identity of Shiny Hunters, Gnostic Players, #TheDarkOverlord and other subgroups.

DataViper, managed by Night Lion Security researcher Vinny Toia, collected the databases, which included information on billions of users whose information had leaked during security breaches of other companies.

“I can’t imagine who would want to discredit me only 3 days before I give a talk linking them to 40% of all non CC breaches since 2017,” Troia tweeted late Sunday.

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