LAC Co., Ltd.

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Emergency Inquiries: Cyber Emergency Center ®

Emergency Response Service to quickly support our customers during security-related emergency cases.
If you are in an emergency situation, please contact us now [Cyber Emergency Center]

For inquiries by email

email of Cyber Emergency Center ®

24-Hour Consultation, No Reservations Necessary

Emergency Inquiries: Cyber Emergency Center ®

If you are in an emergency situation, please contact us now [Cyber Emergency Center]

Corporate History

Sep, 1986 Established Little eArth Corporation Co., Ltd.
May, 1987 Established A&I System Co., Ltd.
Apr, 1995 Launched information security business
Jul, 1998 Cyber Attack Techniques Training (course name Security Academy) started
May, 2000 Established "Monitoring Center" to strengthen and expand unauthorized access monitoring and response business
Feb, 2002

JSOC (Japan Security Operation Center) with renewed monitoring center systems and facilities and expanded security management functions

JSOC was established in Toranomon, Minato-ku, Tokyo

Oct, 2007

Little eArth Corporation Co., Ltd and A&I System Co., Ltd. Management Integrated

Established LAC Holdings Co., Ltd.

Listed on the Osaka Securities Exchange, Hercules Market and JASDAQ Stock Exchange

Nov, 2007 KDDI Corporation and the Little eArth Corporation Co., Ltd. entered into a business alliance, and KDDI Corporation and LAC Holdings Co., Ltd. entered into a capital alliance
Apr, 2008

Restructured Little eArth Corporation Co., Ltd. to specialize in the security services business

Consolidated the systems integration services to A&I System Co., Ltd.

Apr, 2009

Listed solely on the JASDAQ Securities Exchange

Established the Cyber Emergency Center, a specialized organization dedicated to emergency response to cyber incidents

Established "LAC Security Academy" as an information security education business

Apr, 2010 Listed on the Osaka Securities Exchange JASDAQ with the merger of the JASDAQ Securities Exchange and the Osaka Securities Exchange
May, 2010 Consolidated the group of companies that were spread all over Tokyo and relocated to its current Headquarters in Chiyoda-ku, Tokyo Hirakawacho
Apr, 2012

LAC Holdings Co., Ltd. absorbed 3 wholly-owned subsidiaries.
(Little eArth Corporation Co., Ltd., A&I System Co., Ltd., and IT Crew Co., Ltd.)

Company name changed to "LAC Co., Ltd."

Jul, 2013 Listed on the Tokyo Stock Exchange JASDAQ (Standard) with the merger of the Tokyo Stock Exchange and the Osaka Securities Exchange
Dec, 2013 Strengthened alliance with KDDI through increased capital towards business expansion
Jun, 2014 Cyber Grid Japan, a research division of security experts, was established to prevent damage from cyber attacks
Mar, 2018 Established KDDI Digital Security Inc., a joint venture company in partnership with KDDI Corporation
Jul, 2018

Established Singapore Branch

Established the Agile Development Center to develop and practice secure agile development methods

Jun, 2019 Established "LAC TECHNO CENTER KITAKYUSYU" as a technical base for security business
May, 2021

Established "LAC Techno Center Akihabara" as a technical hub for conducting penetration testing on IoT devices, information systems, and other equipment

Established the Financial Crime Prevention Center (FC3) to provide financial institutions with insights for preventing crime victims such as fraudulent fund transfers

May, 2022 Invested Eltes Co., Ltd. to strengthen internal fraud countermeasures (implementing capital and business alliance)
Jun, 2022 Established purpose and vision as new management messages
Jun, 2023 Established an internal framework for utilizing generative AI and commenced its operational deployment
Feb, 2025 Delisting from the Tokyo Stock Exchange Standard Market and becoming a wholly owned subsidiary of KDDI Corporation
Oct, 2025 Merged with KDDI Digital Security Inc.