Insomniac Games Listed by rhysida Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On December 12, 2023, Insomniac Games was listed by the rhysida ransomware group. Public reporting states that internal files were exfiltrated in a ransomware attack. The number of people affected remains unknown, and further operational details have not been disclosed.

The listing itself is a claim by the group. For a studio that develops major entertainment titles and holds internal business and creative material, any confirmed exposure of internal files carries practical consequences for the company and anyone whose information may have been among those files.

What happened

According to the available record, Insomniac Games, Inc., an American video game developer based in Burbank, California, appeared on a rhysida listing dated December 12, 2023. The reported summary describes internal files exfiltrated in a ransomware attack. No public figure has been given for the volume of data, the precise date of initial access, the intrusion method, or the number of individuals whose information may be involved. Those elements remain undisclosed.

Ransomware incidents of this type typically involve unauthorized access, encryption of systems or data, and the theft of files before or during the encryption phase. In this case, the only concrete assertion in the public facts is that internal files were taken and that the group listed the studio. Whether negotiations occurred, whether a ransom was paid, or whether any files were later published is not stated in the provided record.

Inside rhysida

Rhysida is a ransomware operation that became publicly visible in 2023. Like other groups using a double-extortion model, it is known to encrypt victim environments and simultaneously exfiltrate data, then threaten to publish or auction the stolen material on a dedicated leak site if payment is not made. The group has listed organizations across multiple sectors, including healthcare, education, government contractors, and commercial enterprises. Listings on such sites are claims by the actors; independent confirmation that every listed file set was in fact stolen from the named victim is not automatic.

Public technical reporting on rhysida has described the use of relatively straightforward intrusion paths, deployment of ransomware payloads, and the maintenance of a Tor-based portal where victim names and sample data are sometimes displayed. No claim specific to Insomniac Games beyond the listing and the description of exfiltrated internal files appears in the facts provided here; any further statements the group may have made are outside this record.

Who is Insomniac Games?

Insomniac Games, Inc. is an American video game developer headquartered in Burbank, California. The studio is known for creating high-profile console and related titles and operates within the broader interactive-entertainment industry. Organizations of this kind routinely maintain source code, design documents, unreleased project materials, employee and contractor records, business correspondence, and commercial agreements with platform holders and partners.

A breach at a developer of this profile is consequential because the internal files can include both commercially sensitive creative assets and ordinary corporate data that touches staff, collaborators, and sometimes players or external contacts. Even when the exact contents remain unconfirmed, the combination of intellectual-property value and personal or contractual information raises the stakes for containment, notification, and recovery.

The information in question

The facts name the exposed material only as “internal files exfiltrated in a ransomware attack.” No inventory of specific data categories—such as employee identifiers, payroll details, source repositories, or partner contracts—has been supplied in the public record summarized here. The number of people affected is listed as unknown.

Video-game studios typically hold a mix of creative work product, human-resources data, legal and financial documents, and technical infrastructure records. Because the precise contents in this incident are unconfirmed, it is not possible to state as fact which of those categories, if any, were included. Readers should treat any detailed description of the stolen set that does not come from the company or a verified forensic source as unverified.

The real-world impact

For individuals, the practical risks depend entirely on what was actually taken. If employee or contractor records were among the internal files, possible outcomes include targeted phishing, credential stuffing, or identity-related fraud. If only non-personal project material was involved, the direct risk to private individuals may be lower, while the commercial and reputational impact on the studio remains. Because the affected population size and data types are undisclosed, no reliable estimate of individual harm can be offered.

For Insomniac Games the consequences can include operational disruption during incident response, costs of investigation and remediation, potential contractual notifications to partners, and the longer-term question of whether any exfiltrated creative or business material surfaces publicly. None of these outcomes is established as having already occurred solely by the fact of a ransomware group’s listing; they are the ordinary range of issues that follow such claims.

Were you affected?

If you have worked with, contracted for, or otherwise shared personal or account information with Insomniac Games, consider the following practical steps:

• Treat unsolicited messages that reference the studio, unreleased projects, or urgent payment or credential requests with caution; verify through official channels.
• Change passwords for any accounts that reused credentials potentially associated with work or partner portals, and enable multi-factor authentication where available.
• Monitor financial and credit activity for unusual behavior if you have reason to believe identity data may have been involved.
• Rely on statements issued directly by the company or by relevant regulators rather than on claims circulating solely from threat-actor sites.

You can also run a free exposure scan of your email address to check whether it has already appeared in known breach datasets. That check will not confirm or rule out involvement in this specific incident, but it can indicate whether your address has surfaced elsewhere and help you prioritize further protections.

AICompiled with AI assistance from public sources and published under our editorial standards.