Verizon and one of the country’s largest water agencies were reportedly among the groups targeted in the hack of Pulse Connect Secure devices that was blamed on China and came to light in April.

Verizon told The Associated Press that it had found a Pulse-related data breach in one of its labs but added that it was quickly isolated and that no data or customer information was believed to have been stolen.

A spokesman for the telecommunications giant, Rich Young, said, “We know that bad actors try to compromise our systems.”