By Reuters Staff 2 Min Read FILE PHOTO: White House press secretary Jen Psaki speaks during a briefing at the White House in Washington, U.S., March 15, 2021. REUTERS/Kevin Lamarque/File Photo WASHINGTON (Reuters) - 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.