Cyber Threat Intelligence
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Ransomware Victim

Foss Inc.

Ransomware attack by Pear · Disclosed September 11, 2026 · 🇺🇸 United States

fossinc.com

Date Disclosed
Sep 11, 2026
2026
Threat Group
Pear
119 total victims
Country
🇺🇸 United States
Industry
—

ThreatAI Analysis

Compiled from this incident record and the threat intelligence profile for Pear. Figures and technique mappings are quoted from the source data, not inferred.

About the Pear group

Pure Extraction And Ransom (PEAR) Team is the community of highly responsible and strictly disciplined members. We are a private team and have nothing common with any other threat actors. We've been monitoring this field for a long-long time. So, we understand all the processes and know well how it all works. Pear has listed 118 victims since August 2023.

How Pear is documented to operate

Valid Accounts T1078 Stealth Persistence

Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network.

Mitigations: Application Developer Guidance, User Training, Password Policies, User Account Management, Privileged Account Management, Multi-factor Authentication

MITRE ATT&CK reference →
Phishing T1566 Initial Access

Adversaries may send phishing messages to gain access to victim systems. All forms of phishing are electronically delivered social engineering. Phishing can be targeted, known as spearphishing. In spearphishing, a specific individual, company, or industry will be targeted by the adversary. More generally, adversaries can conduct non-targeted phishing, such as in mass malware spam campaigns. Adversaries may send victims emails containing malicious attachments or links, typically to execute malicious code on victim systems. Phishing may also be conducted via third-party services, like social media platforms.

Mitigations: Network Intrusion Prevention, Restrict Web-Based Content, User Training, Antivirus/Antimalware, Software Configuration, Audit

MITRE ATT&CK reference →

MITRE ATT&CK techniques attributed to Pear across its recorded activity, not a finding about how Foss Inc. was reached.

Incident Analysis

Foss Inc. was targeted by Pear ransomware, one of the most active ransomware groups in our database with 119 confirmed victims globally. The attack was disclosed on September 11, 2026, when Foss Inc. appeared on the group's dark web leak site.

Foss Inc. is based in United States . United States ranks #1 globally for ransomware attacks, with 9,534 victims in our database.

Pear typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats — paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: Sep 19, 2026 00:00 UTC.

Frequently Asked Questions

Was Foss Inc. attacked by ransomware?

Yes. Foss Inc. was listed as a victim of the Pear ransomware group on September 11, 2026. The organisation is based in United States. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Foss Inc.?

Foss Inc. was attacked by Pear ransomware. Pear is one of the most active ransomware groups, having claimed 119 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Foss Inc. ransomware attack occur?

The ransomware attack on Foss Inc. was disclosed on September 11, 2026. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the Foss Inc. ransomware attack?

The specific data stolen from Foss Inc. has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. Sensitive business data was likely targeted.

How can organisations protect against Pear attacks?

To defend against Pear and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.