The SeasonalInvite phishing campaign uses social engineering tied to seasonal themes and abuses commercial Remote Monitoring and Management (RMM) tools to compromise victims. The campaign has been observed since January 2026 and represents an example of increasing abuse of RMM software by attackers. The campaign involves sending phishing messages that include eCards and leverage RMM capabilities to facilitate malicious actions. The threat is primarily operational and procedural rather than a software vulnerability. Mitigation focuses on organizational controls over RMM tool usage rather than technical patches.

The campaign enables attackers to leverage legitimate RMM tools to gain unauthorized access or control over victim systems through phishing and social engineering. This can lead to compromise of network resources, data exposure, or further malicious activity facilitated by the abused RMM software. The impact is medium severity given the social engineering vector combined with the use of trusted management tools, increasing the likelihood of successful compromise if controls are insufficient.

There is no software patch applicable for this phishing campaign. Organizations should implement strict policies to control and inventory approved RMM tools within their networks. Monitoring and restricting the use of RMM software can reduce the risk of abuse. User awareness training on phishing and social engineering, especially around seasonal themes, is recommended. The vendor manages no cloud service remediation for this threat. Check the referenced vendor advisory and research links for ongoing updates.