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Ransomware Victim Technology

Viavi Solutions

Ransomware attack by Exfilsquad Β· Disclosed July 26, 2026 Β· πŸ‡ΊπŸ‡Έ United States

viavisolutions.com

Date Disclosed
Jul 26, 2026
2026
Threat Group
Exfilsquad
15 total victims
Country
πŸ‡ΊπŸ‡Έ United States
Industry
Technology

Incident Analysis

Viavi Solutions was targeted by Exfilsquad ransomware, one of the most active ransomware groups in our database with 15 confirmed victims globally. The attack was disclosed on July 26, 2026, when Viavi Solutions appeared on the group's dark web leak site.

Viavi Solutions is based in United States , operating in the Technology sector. United States ranks #1 globally for ransomware attacks, with 8,985 victims in our database.

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

Exfilsquad 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 β€” 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: Aug 4, 2026 04:00 UTC.

Frequently Asked Questions

Was Viavi Solutions attacked by ransomware?

Yes. Viavi Solutions was listed as a victim of the Exfilsquad ransomware group on July 26, 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 Viavi Solutions?

Viavi Solutions was attacked by Exfilsquad ransomware. Exfilsquad is one of the most active ransomware groups, having claimed 15 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Viavi Solutions ransomware attack occur?

The ransomware attack on Viavi Solutions was disclosed on July 26, 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 Viavi Solutions ransomware attack?

The specific data stolen from Viavi Solutions 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, Viavi Solutions likely held source code, intellectual property, and customer data.

How can organisations protect against Exfilsquad attacks?

To defend against Exfilsquad 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.