The White House has detected suspicious cyber activity on one of its computer systems in the Executive Office of the President (EOP) where US President Barrack Obama's most important officials work.
"In the course of assessing recent threats we identified activity of concern on the unclassified EOP network," a White House official told Efe news agency on condition of anonymity.
The EOP receives cyber alert threats on a daily basis and each of them is taken very seriously during the regular security evaluations that take place, he added.
"In this case we took immediate measures to evaluate and mitigate the activity," the official said.
The response to the suspicious activity resulted in outages and loss of internet connectivity on the affected network. No computer or system at the office was damaged.
However, there was no information immediately available regarding when the activity occurred nor who may have been responsible.
