BleepingComputer
KDDI Corporation, a major telecommunications provider in Japan, has reported a significant data breach affecting its email system, which is also used by five other internet service providers (ISPs). The breach has exposed up to 14.2 million email logins, putting users' personal information at risk. KDDI did not specify how the attackers gained access or whether any sensitive data beyond email logins was compromised. This incident raises concerns about the security measures in place at ISPs and the potential for increased phishing attacks targeting affected users. As the investigation continues, users are advised to change their passwords and remain vigilant against suspicious communications.