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Cyber Threat
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Ransomware victim Manufacturing

Shelco Filters

Listed by Securotrop on · organisation based in United States

www.shelco.com

Disclosed
Sep 12, 2026
Leak-site listing date
Threat group
Securotrop
46 victims listed
Country
United States
#1 most targeted
Sector
Manufacturing

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.

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 44 victims since June 2025.

Incident analysis

Shelco Filters was listed by Securotrop ransomware, a group with 46 victims recorded in this database. The listing appeared on the group's leak site on September 12, 2026.

Shelco Filters is based in United States and operates in the Manufacturing sector. United States ranks #1 worldwide for ransomware disclosures, with 10,159 victims in this database.

Sector context. Manufacturing companies are frequently targeted because production downtime directly translates to financial loss. Ransomware operators exploit this time-sensitivity to demand higher ransoms and faster payment.

Securotrop typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was Shelco Filters attacked by ransomware?

Yes. Shelco Filters was listed as a victim of the Securotrop ransomware group on September 12, 2026. The organisation is based in United States and operates in the Manufacturing sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Shelco Filters?

Shelco Filters was attacked by Securotrop ransomware. Securotrop is one of the most active ransomware groups, having claimed 46 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Shelco Filters ransomware attack occur?

The ransomware attack on Shelco Filters was disclosed on September 12, 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 Shelco Filters ransomware attack?

The specific data stolen from Shelco Filters 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 Manufacturing organisation, Shelco Filters 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.