The White House's task force looking into the recent hack of Microsoft Corp's Exchange met this week with representatives of the private sector, White House spokeswoman Jen Psaki said in a statement on Wednesday
The group, which met on Monday, "included private sector members for the first time" who were invited "based on their specific insights to this incident," she said.
Hacking groups are using recently discovered flaws in the Exchange mail server software to break into targets around the world.
The White House group noted that paying to mitigate the hack "weighs particularly heavily on small businesses," Psaki said.