Seven Korean companies jointly develop electronic proof technology based on blockchain mobile phones

According to South Korean media Viva100, seven companies including South Korea's KT, SKtelecom, LG U+, Samsung Electronics, KEB HANA Bank, WooRi Bank, and Koscom announced the joint development of block-based mobile phone electronic proof technology. The core of its technology is to use the blockchain network to prove personal information and effectively manage personal information security.