LG Uplus disclosed the results of its information security activities last year, including AI-based security monitoring and upgrades to its personal information protection system.

LG Uplus said on Wednesday it published 'Information Security White Paper 2025'. The company has disclosed its information security activities and performance through an annual white paper since 2023.

The latest white paper includes last year's information security activities, including AI-based security monitoring, personal information protection, increased investment and stronger governance. It also set out customer protection activities such as preventing spam and voice phishing as a separate section.

LG Uplus said it responded to more than 200,000 security events through a SOAR-based integrated security monitoring system. Average mean time to respond fell by more than 90 percent from a year earlier. It also strengthened its threat detection and response capabilities using AI-based abnormal behavior analysis, cyber threat intelligence and dark web monitoring.

It also expanded customer protection activities. It operates 'Protect My Security' to guide customers on daily-life security services and used its on-device AI technology 'Anti-Deep Voice' and AI-based spam blocking solution 'ixi Spam Filter' to prevent damage from spam and voice phishing.

In personal information protection, it strengthened an integrated management system for its privacy center so customers can directly check the status of personal information processing and exercise their rights. It expanded privacy compliance checks to company-wide services and also strengthened checks on personal information consistency and a timely disposal system.

Based on these activities, LG Uplus received an A grade, the highest level, in an assessment of personal information processing policies. Information security investment totalled about 99.6 billion won, up 17 percent from a year earlier. Investment over the past 5 years increased 3.3 times. Dedicated information security staff totalled 351 last year, up 20 percent from the previous year. It also expanded inspections under its cyber attack surface management system to 150,000 cases. It completed measures for identified vulnerabilities within 30 days.

It also strengthened information security governance. It operates a system that reports information security status to its board from before revisions to the Information and Communications Network Act, and it is responding to security threats in the AI era through an information security advisory committee of legal, academic and industry experts.

It cooperated with the Korea National Police Agency to prevent AI-based livelihood crimes and pushed industry-academia cooperation with Soongsil University to foster information security talent. It also participated, as the only South Korean telecom operator, in a pilot programme for an always-on reporting, remediation and disclosure system for security vulnerabilities promoted by the Ministry of Science and ICT and the Korea Internet & Security Agency. It also recently joined South Korea's public-interest AI security initiative, Project Canopy.

Hong Kwan-hee (홍관희), head of LG Uplus' Information Security Center, said information security is the most important foundation for safeguarding customer trust as cyber threats become more sophisticated with advances in AI technology. He said the company would minimise security blind spots and create an environment in which customers can use services with confidence.