Centennial School District data posted to dark web after ransomware attack "The District can confirm the attackers claimed to have exfiltrated and published data from the District's systems," a spokesperson said in a statement. Author: Christine Pitawanich Updated: 9:48 PM PDT May 14, 2021 GRESHAM, Ore. — This week the Centennial School District has started to bring some of its systems back online after a data breach a few weeks ago prompted a shutdown of computer systems. KGW received information that district data has been posted on the dark web. The information was shared in confidence. This week we spent time verifying its validity.