Lockheed Martin detects 'significant' onset above message web - CNN.com

(CNN) -- Lockheed Martin acknowledged a "mulish" onset ashore its message systems network this month yet said no buyer data was compromised.

The enterprise published a statement Saturday saying it studied of "a premonitory and tenacious attack" on May 21. It mentioned the company's information security team immediately detected the attack and that no customer, agenda or employee personal data has been compromised.

It did no detail on the ecology of the attack.

"Throughout the ongoing investigation, Lockheed Martin has proceeded apt keep the suitable U.S. administration agencies accused of our deeds," the expression said. "The crew continues to work approximately the timer to reinstate hired way to the web, when retaining the maximum class of security."

Lockheed Martin namely one the world's largest aerospace companies. It has about 126,000 employees, according to the statement.

CNN's Deborah Doft contributed to this report.