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Ransomware Victim Other

Prefix Corp

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

www.prefix.com

Date Disclosed
Sep 18, 2026
2026
Threat Group
Securotrop
44 total victims
Country
🇺🇸 United States
Industry
Other

ThreatAI Analysis

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

On September 18, 2026, Securotrop listed Prefix Corp on its dark web leak site over 32 victims have been recorded by the group since June 2025.

About the Securotrop group

Securotrop is a ransomware group established in early 2025 that operates within the Qilin affiliate network while maintaining an independent public identity, focusing exclusively on commercial targets and deliberately avoiding healthcare and government entities, with approximately 32 documented victims. Securotrop has listed 42 victims since June 2025.

Incident Analysis

Prefix Corp was targeted by Securotrop ransomware, one of the most active ransomware groups in our database with 44 confirmed victims globally. The attack was disclosed on September 18, 2026, when Prefix Corp appeared on the group's dark web leak site.

Prefix Corp is based in United States , operating in the Other sector. United States ranks #1 globally for ransomware attacks, with 9,578 victims in our database.

Sector context: Organisations in this sector hold valuable data and operational systems that ransomware groups seek to exploit for financial gain through encryption and data exfiltration.

Securotrop 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 24, 2026 08:00 UTC.

Frequently Asked Questions

Was Prefix Corp attacked by ransomware?

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

Which ransomware group attacked Prefix Corp?

Prefix Corp was attacked by Securotrop ransomware. Securotrop is one of the most active ransomware groups, having claimed 44 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Prefix Corp ransomware attack occur?

The ransomware attack on Prefix Corp 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 Prefix Corp ransomware attack?

The specific data stolen from Prefix Corp 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 Other organisation, Prefix Corp likely held sensitive business data, client information, and operational records.

How can organisations protect against Securotrop attacks?

To defend against Securotrop 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.