(LEAD) 280,000 SKT users replace USIM chips through hacking-prompted replacement service Yonhap News Agency
Source: GoogleNews
Source Link: https://news.google.com/rss/articles/CBMiWkFVX3lxTFBqdFNTdnA2UzBNYVIyVm1LdG9zUUd1c3dCMTZ6QXhITHFXZENXdWRzZVpMZ0xCMTBBNDY3azdQSnhNSzBRaWs5Mmd1b3hxZUNJcGx1MXphZFBmQQ?oc=5