When you purchase through links on our site, we may earn an affiliate commission.Heres how it works.
The company confirmed the news in an email recently sent to affected customers,The Registerreports.
The Register speculates that threat actors exfiltrated more than this due to blank text in the letters.
The FBI is currently investigating the matter, it said.
Estes Express Lines is a privately owned American freight transportation provider based in Richmond, Virginia.
