Arcadia: unauthorized access to the SpeeCAN RAIDEN alert service

Arcadia's detailed October 19 timeline places the attack from 06:26 on October 11 and detection of abnormal database load at 23:40 that day, differing from the initial 16:30 account. At SpeeCAN RAIDEN, up to about 3,136,000 email addresses, 105,000 phone numbers and 15,000 fax numbers may have leaked. Malicious code sent 1,423,428 messages early on October 13; some services were stopped and resumed October 15. Traces of access also affected NET119 and 119RAIDEN, potentially exposing fields including names, birth dates, genders and addresses. These figures are not a deduplicated count of affected people. At a press conference on October 23 the president said the attacks were still continuing. According to MBS, at least about 560,000 email addresses may have leaked across 393 bodies, including 15 prefectures and 366 municipalities, and 20 prefectural police forces. In Tochigi, Kanuma City said data of about 7,800 disaster mail subscribers may have leaked, and its fire department named email addresses of 106 users of 119 Raiden and Net119. Nasukarasuyama City, Ichikai Town and Shioya Town also said their subscribers' data may have leaked. Police forces that use the service for staff safety checks are affected too: all about 3,900 staff of Tochigi Prefectural Police, and about 16,000 in Kanagawa, 15,000 in Aichi, 13,000 in Saitama, 11,000 in Fukuoka and 2,200 in Kagoshima. In Hiroshima Prefecture, Fukuyama City said about 63,000 registrations for its disaster mail and its fire department union's fire alerts may have leaked, Hatsukaichi about 11,000 and Takehara about 3,500, and Hiroshima City said about 10,000 staff records in its staff call-up system were affected. Hiroshima Prefectural Police named the names, departments and private email addresses of all about 5,700 staff. Saitama City named 34,783 email addresses for its disaster radio mail, 195 of them linked to staff names, and the names and numbers of 73 users of its phone and fax alert service. Okazaki City said about 37,000 disaster mail registrations, about 30,000 parents of municipal school pupils and about 2,400 fire service call-up entries may be affected.