NTT Communications Corporation reported a cybersecurity incident affecting approximately 18,000 corporate customers. Hackers compromised the 'Order Information Distribution System,' resulting in the potential theft of customer names, contact details, and service usage information. Despite the security breach discovery on February 5 and the containment of threats, further investigation revealed an attacker's pivot to another network device on February 15, which was also disconnected. NTT's incident response did not include personalized notifications; instead, a public website announcement was made. The breach did not affect contracts for smartphones and mobile phones provided by NTT Docomo.
"id": "ntt1055030725",
"linkid": "ntt-communications",
"type": "Breach",
"date": "3/2025",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"