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Ransomware Victim Technology

Quest Group

Ransomware attack by Anubis · Disclosed September 18, 2026 · 🇺🇸 United States

questgroupsearch.com

Date Disclosed
Sep 18, 2026
2026
Threat Group
Anubis
113 total victims
Country
🇺🇸 United States
Industry
Technology

ThreatAI Analysis

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

Quest Group was listed on Anubis's dark web leak site operated by the ransomware-as-a-service group on 18 September 2026. The Technology company operates in sectors targeted by Anubis such as healthcare, engineering, construction and professional services.

About the Anubis group

Anubis is a ransomware-as-a-service group active since December 2024 that targets healthcare, engineering, construction, and professional services sectors, offering affiliates a flexible revenue split model and an optional destructive "wipe mode" alongside standard encryption. Anubis has listed 107 victims since February 2025.

Incident Analysis

Quest Group was targeted by Anubis ransomware, one of the most active ransomware groups in our database with 113 confirmed victims globally. The attack was disclosed on September 18, 2026, when Quest Group appeared on the group's dark web leak site.

Quest Group is based in United States , operating in the Technology sector. United States ranks #1 globally for ransomware attacks, with 9,538 victims in our database.

Sector context: Technology companies hold intellectual property, customer data, and source code — all highly valuable assets. A successful ransomware attack can also put downstream customers at risk through supply chain exposure.

Anubis 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 20, 2026 14:00 UTC.

Frequently Asked Questions

Was Quest Group attacked by ransomware?

Yes. Quest Group was listed as a victim of the Anubis ransomware group on September 18, 2026. The organisation is based in United States and operates in the Technology sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Quest Group?

Quest Group was attacked by Anubis ransomware. Anubis is one of the most active ransomware groups, having claimed 113 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Quest Group ransomware attack occur?

The ransomware attack on Quest Group was disclosed on September 18, 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 Quest Group ransomware attack?

The specific data stolen from Quest Group 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. As a Technology organisation, Quest Group likely held source code, intellectual property, and customer data.

How can organisations protect against Anubis attacks?

To defend against Anubis 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.