KDDI, also known as KDDI Corporation, is a publicly owned company headquartered in Japan. Founded in 1984, this Japanese telecommunications company employs approximately 2,100 individuals and reported $40.6B in revenue as of 2025. It specializes in providing telecommunications services.
On September 10, 2026, KDDI confirmed a cyberattack that exposed up to 14.22 million email addresses and passwords across six Japanese internet service providers. The breach stemmed from a vulnerability exploited in third-party software operating within KDDI's shared email infrastructure. Previously, on September 9, KDDI improved the performance of its Buffmee consumer AI application, a retrieval-augmented generation application utilizing over 100 content sources, by overhauling its answer evaluation and bottleneck analysis, resulting in a 38% reduction in overall response latency. Also on September 9, KDDI announced it repurchased 256,700 shares of its common stock between August 7 and August 31, 2026, at a total cost of ¥749.3 million, as part of an ongoing share buyback program authorized by its board. Earlier the same day, KDDI secured selection for Japan's GENIAC national project to develop a robot foundation model designed to automate tasks in retail and logistics. The project will leverage operational data collected at Lawson's KDDI Takanawa headquarters store in Tokyo, covering activities from back-of-house inventory handling to product stocking.
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