Cybersecurity company Malwarebytes said on Tuesday that some of its emails were breached by the same hackers who used the software company SolarWinds to hack into a series of U.S. government agencies.

“We can confirm the existence of another intrusion vector that works by abusing applications with privileged access to Microsoft Office 365 and Azure environments.

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“After an extensive investigation, we determined the attacker only gained access to a limited subset of internal company emails.”

However, Kleczynski also added that the company did not find evidence of a compromise or unauthorized access to internal production or on-premises environments.

“Our software remains safe to use,” the company’s statement said.

In a message posted to Twitter, Malwarebytes’ Chief Executive Marcin Kleczynski said the hacking campaign “is much broader than SolarWinds and I expect more companies will come forward soon.”

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