International Paper takes Mill Operations Offline after Cyberattack

April 2, 2024


International Paper is in the process of starting up its Riegelwood Mill after shutting it down due to a cyberattack, a company spokesperson said Thursday morning.

"Late last week, we experienced a cyberattack event on our operating systems at our mill in Riegelwood, N.C.," IP spokesperson Kimberly Clewis wrote in a statement. "Thankfully, everyone at the mill is safe and there have been no environmental issues."

The statement said that "out of an abundance of caution, we coordinated an orderly shutdown of the mill to resolve the issue and are in the process of starting up the mill."

Clewis said the attacker accessed International Paper's system through a third-party vendor "and did not directly target our company or mill. This event impacted only a limited set of manufacturing systems at the Riegelwood Mill. No other mills, locations or systems were affected."

Incident Date

February 22, 2024

Estimated Cost

Operational shutdown


No victims identified

Type of Malware

No Malware identified

Threat Source

No threat source identified