Washington (CNN) After Omarosa Manigault Newman revealed last month that she secretly taped White House chief of staff John Kelly as he fired her in the Situation Room, a change was made to the West Wing's phone policy.

Going forward, staffers would not be allowed to leave their phones -- even the government-issued ones -- in lockers in the small entry area outside the Situation Room, as they had done for the previous 19 months of the administration. Instead, staffers were directed to go back and put their White House-issued devices in their offices or alongside their personal phones in lockers stationed near the West Wing entrances before being buzzed into the Situation Room.

This change was made quietly, but two senior administration officials told CNN they believed it was in direct response to the news that Manigualt Newman had taped Kelly.

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