Reuters reports: An attack by hackers on a White House computer network earlier this month was considered so sensitive that only a small group of senior congressional leaders were initially notified about it, U.S. officials said on Thursday.

The officials said the Democratic and Republican leaders of the Senate and the House of Representatives and the heads of the Senate and House Intelligence Committees, collectively known as the “Gang of Eight,” were told last week of the cyber attack, which had occurred several days earlier.

Security experts said this limited group would normally be informed about ultra-secret intelligence operations and notifying them of a computer breach in this way was unusual. [Continue reading…]