Potential personal information leak at Sapporo’s Shiroishi Ward Office due to remote PC operation and external transmission.

Sapporo is the capital of Hokkaido, Japan’s northernmost main island, founded officially in 1868 during the Meiji era as part of a planned development project. It is now internationally famous for its annual Sapporo Snow Festival, its beer brewing heritage (Sapporo Beer), and for having hosted the 1972 Winter Olympics. The city’s modern grid layout and landmarks like the Clock Tower reflect its organized, Western-influenced founding.

Shiroishi Ward is a district in southwestern Saitama City, Japan, historically formed in 2001 through a merger of former towns. Its name, meaning “White Stone,” is derived from local geology and it is known for traditional industries like *shiroishi chōmen* (thin wheat noodles) and historic temples such as Shōsen-ji. The area developed as a post station on the Nakasendō highway during the Edo period, facilitating travel and commerce.