United States trucks and military vehicles maker Navistar International Corporation has confirmed a cyberattack that resulted in some data being stolen.
On Monday, in a Form 8-K filing with the Securities and Exchange Commission (SEC), Navistar said it learned of a credible potential cybersecurity threat to its information technology system on May 20, 2021.
Navistar immediately took the necessary measures to contain and mitigate the impact of the incident, and also launched an investigation into the matter, engaging with security and forensics experts.
The company also took steps to strengthen the security of its IT infrastructure and protect the data contained therein, and says that its systems have remained fully operational.
However, on May 31, Navistar “received a claim that certain data had been extracted from” its network.
The company continues to investigate “and address the scope and impact of the cybersecurity incident” and has already contacted law enforcement on the issue.
Navistar did not provide technical details on the incident, but there is a possibility that ransomware might have been involved, considering the rising number of ransomware incidents observed in recent months in which attackers stole victim data to use it as leverage.
Created in 1986, Navistar makes trucks, buses and diesel engines, while its Navistar Defense subsidiary produces military vehicles.
Following a ransomware attack that forced Colonial Pipeline to shut down distribution systems at the beginning of May, JBS USA, the US subsidiary of the world’s largest meat processing company, announced last week that it too suspended operations in America and Australia.
Also last week, Steamship Authority, the largest ferry service to the Massachusetts Islands of Martha’s Vineyard and Nantucket from Cape Cod, was hit with a similar attack. Earlier this year, Molson Coors Beverage Company fell victim to ransomware.