Orrick, Herrington & Sutcliffe Listed by SilentRansomGroup Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
Orrick, Herrington & Sutcliffe was listed by the SilentRansomGroup ransomware group on February 23, 2026, after internal files were exfiltrated in a ransomware attack. An undisclosed number of people may have been affected; anyone who had dealings with the firm should check for updates and monitor their accounts.
Inside the incident
The only confirmed public information is the listing itself and the group's assertion that internal files were taken. The date of the intrusion, the volume of data, the encryption status of systems, and any ransom demand or payment remain undisclosed. No independent verification of the files or their sensitivity has been published.
Inside SilentRansomGroup
SilentRansomGroup is a ransomware operator that has appeared on leak sites since at least 2023. Public reporting describes the group as using double-extortion tactics: encrypting victim systems and threatening to publish stolen data if a ransom is not paid. The group has listed entities in professional services, manufacturing, and local government in prior incidents. Its listings are claims made on its own infrastructure; independent confirmation of data authenticity varies by case.
Orrick, Herrington & Sutcliffe and its sector
Orrick, Herrington & Sutcliffe is a law firm founded in 1963 and headquartered in San Francisco. Like other large law practices, it handles client matters that routinely involve contracts, regulatory filings, litigation records, and communications with corporate and institutional clients. Law firms maintain extensive repositories of non-public information because their work requires access to sensitive commercial and legal documents.
What data was at risk
The listing refers only to “internal files.” The precise categories of information, the number of records, or whether client data, employee records, or third-party materials were included have not been disclosed. Organisations of this type commonly store correspondence, drafts of legal documents, billing information, and identification details, but the exact contents of any exfiltrated material remain unconfirmed.
What's at stake
Exposure of internal legal files can affect ongoing matters, client confidentiality obligations, and regulatory compliance requirements for both the firm and its clients. Individuals whose information appears in those files may face risks of identity misuse or unwanted disclosure of personal or financial details. The firm faces potential reputational, contractual, and regulatory consequences depending on the nature of the data and applicable notification rules.
Were you affected?
Begin by monitoring official statements from Orrick, Herrington & Sutcliffe and any required regulatory notices. Individuals can also run a free exposure scan of their email address against known breach datasets to check for prior appearances of their information. If contacted by the firm, follow its instructions for any offered monitoring or remediation steps.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
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Publicly posted by silentransomgroup — unverified claim, pending independent verification
Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.