Toss Successfully Concludes Security Conference ‘GUARDIANS 2025’

• 1,127 people registered for the event
• 22 sessions delivered across three tracks

Toss announced today that it has successfully concluded its annual security conference, GUARDIANS 2025.

Now in its third year, GUARDIANS brings together security experts from the Toss community to share hands-on experience and best practices, and to discuss the latest issues shaping today’s security landscape. This year’s event more than doubled in size compared to last year and was open to anyone interested in security. A total of 1,127 participants registered in advance.

The conference opened with a keynote by Toss CISO Jungho Chi, who emphasized that “keeping pace with evolving security threats requires new approaches in addition to traditional methods.,” adding, “I hope the real-world security cases shared today offer practical insights for those working in the field.”

A total of 23 security specialists from the Toss community took the stage as speakers, delivering 22 sessions organized across three parallel tracks. Participants were free to choose from a broad range of topics, including personal data protection, threat response, asset protection, and applications of AI in information security.

“This conference provided an opportunity for those working in corporate security to share their challenges and explore solutions together,” said a Toss spokesperson. “We will continue to develop GUARDIANS as a platform that contributes to the advancement of Korea’s information security industry.”