SK Telecom explained the format of official customer messages and urged users to be cautious as concerns grew over smishing texts claiming to have been sent regarding SIM card replacement following the hacking incident on the 8th.
SK Telecom noted that many texts identified as spam or smishing messages are not sent by the company, and emphasized checking the sender number 114 and the "official certification mark" to prevent smishing damage.
Messages related to SIM card replacement sent from stores are also dispatched from the number 114, thereby preventing smishing. Additionally, it is necessary to verify whether the guidance message contains the "official certification mark," which is limited to Android devices that support RCS.
Currently, SK Telecom has completed the dispatch of automatic subscription messages for SIM protection services and is sending out three types of messages: SIM replacement completion messages, store visit guidance messages, and messages indicating delays in SIM acquisition. SK Telecom urged customers to avoid clicking on unverified links or app installation requests and to verify any suspicions with stores or the customer center (114).