# Onamae Cloud Service Disruption: Malware Forces Shutdown of Thousands of Servers

*Published October 23, 2026*
*Source: [https://cybersecuritynews.com/hackers-planted-malware/](https://cybersecuritynews.com/hackers-planted-malware/)*

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## Article

In a significant cybersecurity incident, Japan's Onamae.com Desktop Cloud has been forced to shut down its services after discovering malware in customer server environments. The company has identified up to 26,739 servers as potentially affected, though this number represents a possible impact rather than confirmed infections. On October 20, 2026, Onamae confirmed the presence of malicious software and started deactivating customer servers early the next day to prevent further harm.

The service suspension affects all plans offered by Onamae.com Desktop Cloud, leaving customers without server access while investigations are ongoing. Although the company acknowledged that malware was present, it has not provided details on the type of malware, its capabilities, or how the attackers initially infiltrated the servers. This lack of information leaves the full extent of the threat and the attack chain still unclear.

Customers are facing the dual challenges of service interruption and concerns about data integrity. Onamae has not specified which files or accounts might be impacted or if any data was exfiltrated. While the company has confirmed there have been no leaks of personal customer information or misuse of potentially viewed data, it remains silent on whether any data was copied by the attackers.

Onamae has advised customers to change their server login credentials immediately, highlighting the risk of credential exposure. This preventive measure is crucial, even though there's no published analysis of the malware's capabilities. The company has also warned about potential phishing scams exploiting the situation, advising customers to be wary of emails or calls requesting sensitive information.

The incident underscores the importance of securing cloud environments against malware threats and highlights the potential consequences when such defenses fail. Organizations using cloud services are reminded of the critical need to maintain robust security protocols and vigilance against phishing attempts.