Slimsoft Listed by spacebears Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
Slimsoft has been listed by the spacebears ransomware group, which claims to have exfiltrated internal files; the incident was disclosed on December 04, 2025. The number of individuals affected remains undisclosed; anyone connected to Slimsoft should review the published data and take appropriate protective steps.
What happened
Slimsoft was listed by the spacebears ransomware group on or around December 04, 2025. The listing states that internal files were exfiltrated during a ransomware attack. No further details on the timing of the intrusion, the volume of data, or the method of access have been made public. The organisation has not issued a separate statement confirming or denying the claims.
The group behind it: spacebears
Spacebears is a ransomware operation that maintains a public leak site where it lists organisations it claims to have targeted. The group typically encrypts systems and threatens to publish stolen material if a ransom is not paid. Its listings are presented by the group itself and are not independently verified in every case. Similar claims have appeared on the same site in connection with other victims over recent years.
About Slimsoft
Slimsoft is an Israeli company that has provided custom software and website development services for more than twenty-five years. Its work includes building solutions to meet specific client requirements and maintaining existing systems. Companies in this sector routinely handle project files, client specifications, and technical documentation that can contain contact information and operational details.
The information in question
The listing refers only to internal files taken during the attack. No inventory of specific data types has been released. Organisations of this kind commonly store customer contact records, project correspondence, and database contents, yet the exact material involved in this incident has not been confirmed.
Why it matters
Exposure of internal files can create follow-on risks for clients whose projects or communications appear in the material. These risks include potential misuse of contact details or technical information. For the organisation, the incident adds operational disruption and the possibility of further scrutiny from clients and regulators.
What to do if you're exposed
Individuals concerned about their information should monitor their email and financial accounts for unusual activity and change passwords on any services linked to Slimsoft. Enabling multi-factor authentication where available reduces the chance of unauthorised access. Readers can run a free exposure scan of their email address to check whether it appears in known breach data sets.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
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Publicly posted by spacebears — unverified claim, pending independent verification
Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.