The cyber attack affected the internet-connected televisions at the media centres and also shut down the official Winter Olympics website for around 20 minutes.
However, the organisers claimed that the incident did not compromise any critical part of their operations.
"We know the cause of the problem but these kind of issues occur frequently during the Games," Adams said.
He added, "We have decided with the IOC we are not going to reveal the source of the attack."
The 2018 Olympic Winter Games in Pyeongchang kicked off on Friday with the two Koreans marching under unified flag in an opening ceremony themed around peace and future.