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REvil Ransomware Targets Vierra Magen Marcus LLP Data Leak

ID: 6521fd9a-0179-53bc-b0a8-91bbf8802e09

STIX ID: report--6521fd9a-0179-53bc-b0a8-91bbf8802e09

Feed Name: Cyble Blog

Threat Score
70/100

Date Published: 2025-02-25

Date Updated: 2026-07-20

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REvil ransomware operators reportedly breached Vierra Magen Marcus LLP and posted a list and screenshots claiming exfiltration of approximately 1.2 TB of sensitive and confidential documents (NDAs, patents and other IP-related materials); Cyble reported the claim but could not independently verify the data leak.

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