The clinic said a hacker they labeled “an unauthorized actor” had the ability to acquire information that included names, contact information, Social Security numbers, driver’s license numbers, health insurance information, and physician names.

U.S. intelligence analysts have concluded that Russian military spy hackers were behind a cyberattack on a satellite broadband service that disrupted Ukraine’s military communications at the start of the war last month.

The lists, whose origins are unclear, appear to have first been posted to 4chan, and later to Pastebin, and thereafter to Twitter and to Telegram channels.