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Cyber Threat
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Ransomware victim Technology

Schneider’s Computing

Listed by Arcusmedia on · organisation based in Canada

scomputing.ca

Disclosed
Sep 19, 2026
Leak-site listing date
Threat group
Arcusmedia
121 victims listed
Country
Canada
#3 most targeted
Sector
Technology

ThreatAI analysis

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

About the Arcusmedia group

Arcus Media is a ransomware-as-a-service group that emerged in May 2024, employing double extortion with ChaCha20 + RSA-2048 encryption and recruiting affiliates via a referral-based vetting process, claiming 50+ victims across manufacturing, healthcare, retail, and business services globally. Arcusmedia has listed 115 victims since May 2024.

Incident analysis

Schneider’s Computing was listed by Arcusmedia ransomware, a group with 121 victims recorded in this database. The listing appeared on the group's leak site on September 19, 2026.

Schneider’s Computing is based in Canada and operates in the Technology sector. Canada ranks #3 worldwide for ransomware disclosures, with 965 victims in this 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.

Arcusmedia 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files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished.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 Schneider’s Computing attacked by ransomware?

Yes. Schneider’s Computing was listed as a victim of the Arcusmedia ransomware group on September 19, 2026. The organisation is based in Canada and operates in the Technology sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Schneider’s Computing?

Schneider’s Computing was attacked by Arcusmedia ransomware. Arcusmedia is one of the most active ransomware groups, having claimed 121 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Schneider’s Computing ransomware attack occur?

The ransomware attack on Schneider’s Computing was disclosed on September 19, 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 Schneider’s Computing ransomware attack?

The specific data stolen from Schneider’s Computing 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, Schneider’s Computing likely held source code, intellectual property, and customer data.

How can organisations protect against Arcusmedia attacks?

To defend against Arcusmedia 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.