Does a country require winter Olympic athletes not to wear mobile phones under the pretext of "netwo

Original title: some countries require winter Olympic athletes not to bring mobile phones under the pretext of "network security"? Foreign ministry response
On January 18, foreign ministry spokesman Zhao Lijian chaired a regular press conference. A reporter asked that some countries require athletes and officials participating in the Beijing Winter Olympics not to bring their mobile phones or laptops to Beijing because there may be network security risks. What is China's comment on this?
Zhao Lijian said that we have taken note of the relevant reports, and the spokesman of the Olympic Organizing Committee has just answered the relevant questions. The questions raised by relevant countries about China's so-called network security are completely upside down and nothing out of nothing.