Case Study

Shiroishi City

Product：AppGuard Enterprise
Industry：Local Government

Shiroishi City is located in the southern part of Miyagi Prefecture, bordering Fukushima Prefecture. At the heart of the city stands Shiroishi Castle, whose wooden keep was reconstructed in 1995, surrounded by historical samurai residences and streets that retain the charm of Japan’s feudal era. The city is also well known for its spring armor parade and as a major production area of traditional Kokeshi dolls.

Toda Corporation

Product：AppGuard Enterprise
Industry：General Construction

Founded in 1881 and celebrating its 140th anniversary in 2021, Toda Corporation is engaged not only in domestic architectural and civil engineering projects, but also in numerous ventures across North and South America and Southeast Asia.

KAKUDAI MFG. CO., LTD.

Product：AppGuard Enterprise
Industry：Water Supply Equipment
Revenue: Approximately ¥25.5 billion(Fiscal Year Ended December 2019)

KAKUDAI MFG. CO., LTD. is a specialized manufacturer dedicated to the production and sale of water-related fixtures. Its core products include faucets — the first point of contact between people and water — and the vessels that receive it. Founded in 1879 (the 12th year of the Meiji era), the company combines traditional craftsmanship with advanced technology to deliver reliable plumbing fixtures, while continuously introducing unique and creative products to the market.

ecohai Co., Ltd.

Product：AppGuard Enterprise
Industry：Parcel Delivery Services
Revenue: ¥3.6 billion

ecohai Co., Ltd. operates a parcel delivery business through approximately 40 offices across Tokyo, Osaka, and Nagoya. The company is distinguished by its strong commitment to environmental sustainability—using bicycles as its main delivery method to reduce CO₂ emissions.

PCI Holdings, Inc. (PCI Group)

Product：AppGuard Enterprise
Industry：Information and Communications
Revenue (Consolidated): Approximately ¥11.3 billion (Fiscal Year Ended September 2017)

PCI Holdings, Inc. (PCI Group) is a comprehensive information and communications solutions provider that oversees six consolidated subsidiaries engaged in IT services.

Deguchi Labor Management Office

Product：AppGuard Smalll Business Edition
Industry：Professional Services

Deguchi Labor Management Office faced a serious crisis when the cloud service it relied on became infected with ransomware, halting operations entirely.

Jisenkai Aizawa Hospital

Product：AppGuard Server
Industry：Healthcare (Hospital)
Scale: Approximately 460 beds

Aizawa Hospital takes an active role in the design and implementation of its medical information systems, leading system deployments with a strong sense of ownership. To address the growing threat of ransomware and other cyberattacks, the hospital chose AppGuard, appreciating its clear and intuitive concept of “allowing only specific actions required by essential system services and processes, while blocking all others.”

Nayoro City General Hospital

Product：AppGuard Server
Industry：Healthcare (Hospital)
Scale: Approximately 359 beds

As Japan’s northernmost emergency and critical care center, Nayoro City General Hospital has long been proactive in leveraging ICT technologies—for example, by building a network that connects medical institutions across northern Hokkaido and enabling remote triage for emergency patients. In recent years, following a series of ransomware incidents affecting hospitals throughout Japan, the hospital felt a strong sense of urgency that such threats were “by no means someone else’s problem.” Recognizing the importance of an approach that ensures medical services continue even if an intrusion occurs, the hospital chose AppGuard, deploying it on about 70 servers that support its hospital information system.

Tsuyama Chuo Hospital

Product：AppGuard Server
Industry：Healthcare (Hospital)
Scale: Approximately 500 beds

In recent years, several hospitals have been forced to suspend medical services for extended periods due to ransomware infections. In response to these incidents, Tsuyama Chuo Hospital took proactive steps to strengthen its preparedness—by developing contingency procedures, reinforcing endpoint security measures, and seeking ways to protect systems that are considered absolutely critical to hospital operations.

NCS&A CO., LTD.

Product：AppGuard Server
Industry：IT Solutions

NCS&A CO., LTD. has long provided services such as IT system development and implementation support to a wide range of clients. Recognizing the growing sophistication and complexity of cyberattacks, the company determined that an even higher level of security measures was necessary.