Software company SolarWinds said unknown hackers exploited a previously unknown flaw in two of its programs to go after a limited, targeted set of customers.
The statement, issued over the weekend, did not identify the hackers involved.
SolarWinds said the flaw was unrelated to last year’s hack of government networks by alleged Russian spies, a sprawling espionage operation that used the Texas-based software company as a springboard to break into target networks.
SolarWinds said it is unaware of the identity of the potentially affected customers caught up in the latest hacking campaign.
SolarWinds credited Microsoft researchers for finding the bug.