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Cyber Threat
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Ransomware victim

Cocoon

Listed by Silent on · organisation based in United States

cocoon-inc.com

Disclosed
May 4, 2025
Leak-site listing date
Threat group
Silent
6 victims listed
Country
United States
#1 most targeted
Sector
Not recorded

ThreatAI analysis

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

About the Silent group

Unlike many other groups, Silent claims to operate with a high level of anonymity and discretion. According to their own statement, they avoid public negotiations and encrypt minimal data. Instead, their focus is on stealing valuable confidential corporate information — and either selling it to competitors, on the dark web, or publishing it selectively. Silent has listed 6 victims since March 2025.

Incident analysis

Cocoon was listed by Silent ransomware, a group with 6 victims recorded in this database. The listing appeared on the group's leak site on May 4, 2025.

Cocoon is based in United States. United States ranks #1 worldwide for ransomware disclosures, with 9,971 victims in this database.

Silent 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files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished.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 Cocoon attacked by ransomware?

Yes. Cocoon was listed as a victim of the Silent ransomware group on May 4, 2025. The organisation is based in United States. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Cocoon?

Cocoon was attacked by Silent ransomware. Silent is one of the most active ransomware groups, having claimed 6 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Cocoon ransomware attack occur?

The ransomware attack on Cocoon was disclosed on May 4, 2025. 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 Cocoon ransomware attack?

The specific data stolen from Cocoon 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. Sensitive business data was likely targeted.

How can organisations protect against Silent attacks?

To defend against Silent 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.