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Tenable Selected by The Hokkoku Bank to Proactively Identify Critical Security Gaps

Tenable Identity Exposure hardens overall security posture, turning risk into actionable insights

August 25, 2025 · Tokyo, Japan

Tenable®, Inc., the exposure management company, today announced that The Hokkoku Bank, Ltd. has selected Tenable Identity Exposure to proactively detect and remediate vulnerabilities within its Active Directory (AD) environment. The move is part of the bank's shift toward a "defense-in-depth" security strategy, utilizing exposure management to prioritize the protection of its critical internal systems and reduce the risk of cyber exposure.

A penetration test revealed the bank's internal intrusion detection capabilities were insufficient if perimeter defences were breached, driving the bank’s decision to secure AD, and build a more resilient security posture.

"The most significant change and the greatest benefit since implementing Tenable Identity Exposure has been the visualization of our AD security posture," said Tsutomu Yasoshima, Security Group Chief, Information Systems Department, The Hokkoku Bank. "Previously, it was difficult to pinpoint exactly where potential vulnerabilities and misconfigurations existed. Now, with Tenable Identity Exposure, we can recognize which configurations require review and which vulnerabilities should be prioritized. That visibility has led directly to actionable steps for improvement."

Building on a strong foundation with Tenable Nessus and Vulnerability Management, the Hokkoku Bank further strengthened its security posture by adopting Tenable Identity Exposure.

"We were impressed by how clearly Tenable Identity Exposure conveyed the severity of vulnerabilities within AD, their potential impact and their complex interdependencies, all at a glance and in a step-by-step manner,” said Chiaki Matsui, Security Group Manager, Information Systems Department, The Hokkoku Bank. We concluded that this ‘visualization’ capability is absolutely critical for maintaining ongoing security operations especially when resources are limited."

The bank is also utilizing Tenable's professional services to consult with expert analysts on prioritizing and categorizing findings, helping to shape its long-term security roadmap.

"Financial institutions are prime targets for cyberattacks, and securing identity infrastructure like AD is paramount," said Naoya Kishima, country manager, Tenable Japan. "We’re proud to equip The Hokkoku Bank with a solution that will enable it to visualize and harden its security posture, safeguarding the institution against threat actors that leverage vulnerable or overprivileged identities as an infiltration vector."

For more information, please refer to the full case study here.

Acerca de Tenable

Tenable® is the exposure management company, exposing and closing the cybersecurity gaps that erode business value, reputation and trust. La plataforma de gestión de exposición basada en IA de la empresa, unifica estratégicamente visibilidad, información y acciones relativas a la seguridad a lo largo de la superficie de ataque, para así proporcionar a las organizaciones modernas protección contra ataques que va desde su infraestructura de TI hasta sus entornos en la nube e infraestructura crítica, y todo lo que hay en medio. Al proteger a las empresas contra la exposición de seguridad, Tenable reduce el riesgo para los negocios de más de 44 000 clientes en todo el mundo. Obtenga más información en es-la.tenable.com.

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Contactos de medios de comunicación:

Tenable

[email protected]

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