Seed Planning: ransomware attack

Early on March 2, ransomware encrypted files on some servers and computers at the market research firm Seed Planning, which cut off its network. As a subcontractor of Cross Marketing on a Tokyo Waterworks Bureau study of household water use, it held names, addresses, customer numbers and water usage for up to about 130,000 households. For five other Tokyo bureaus it held data including the names, addresses, ages and genders of 18,000 residents drawn from the resident register, and for Kawasaki City about 2,000 business contact records. After an investigation with outside experts, the company said on June 24 that it had concluded no personal data entrusted by clients had leaked.