Levi Strauss & Co. (Levi’s) says that hackers used social engineering on three of its employees to gain access to and steal corporate data stored on their machines.

The company has disclosed the incident in a filing with the U.S. Securities and Exchange Commission (SEC), saying that its response was sufficiently quick to prevent the compromise of consumer data.

“Based on preliminary findings from the Company’s investigation, the Company believes that certain corporate information was accessed and exfiltrated as a result of the incident,” Levi’s says.

"As of the date of this filing, the Company believes that its rapid response efforts successfully contained and terminated the unauthorized access, and that no consumer data was impacted."

The company added that it has not experienced any interruption in business operations as a result of the incident.