Everest ransomware group publishes Jordan Kuwait Bank’s sensitive data

• Leaked data reportedly includes 1,003 personal records of employees, as well as 11.7 gigabytes of internal and confidential company information.

The cyberattack on Jordan Kuwait Bank (JKB) by the Everest ransomware group marks a significant incident within the financial sector, highlighting the escalating challenges of cybersecurity faced by critical institutions worldwide.

The attack, which reportedly occurred on April 26, 2025, culminated in the alleged publication of a substantial cache of sensitive data after negotiations between the bank and the attackers failed to meet a specified deadline.

Jordan Kuwait Bank, as a prominent player in the financial services industry, manages vast amounts of confidential customer and proprietary data. Such institutions are prime targets for cybercriminals due to the high value and sensitivity of the information they hold.

Severity of the breach

The leaked data reportedly includes 1,003 personal records of employees, as well as 11.7 gigabytes of internal and confidential company information. The breadth of this data underscores the severity of the breach and the potential for widespread repercussions.

The exposure of employees’ personal data raises significant privacy concerns and exposes individuals to risks such as identity theft, fraud, and other malicious activities.

Moreover, the release of internal company documents may compromise the bank’s competitive position, disrupt operations, and undermine stakeholder trust.

The incident reveals vulnerabilities not only in the bank’s cybersecurity infrastructure but also in broader organizational resilience against sophisticated cyber threats.

Faces considerable challenges

The Everest ransomware group’s decision to publish the data after the lapse of negotiation deadlines reflects the growing boldness of such actors and their willingness to inflict reputational and operational damage.

This situation emphasises the importance of proactive measures, including robust encryption, regular security audits, employee training, and effective incident response strategies to mitigate the impact of such attacks.

As the full consequences of the breach continue to unfold, Jordan Kuwait Bank faces considerable challenges in restoring security, ensuring regulatory compliance, and rebuilding confidence among customers and partners.

This episode serves as a stark reminder to financial institutions globally of the critical need for vigilant cybersecurity practices in an era where cyber threats are both persistent and increasingly sophisticated.