International Longshore & Warehouse Union Listed by avaddon Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
The International Longshore & Warehouse Union Listed by avaddon Ransomware Group (reported September 9, 2021) is an unverified claim; the data involved is undisclosed belonging to roughly unknown people. If you have an account with them, your information may now be circulating on the open web and with data brokers. Here’s exactly what happened, how to check if you were affected, and what to do next.
On September 9, 2021, the International Longshore & Warehouse Union appeared on a leak site operated by the Avaddon ransomware group. The listing indicated that internal files had been taken during a ransomware incident. The number of individuals whose information may be involved remains unknown, and no further technical details about the intrusion have been made public.
The incident is significant because the union represents workers in critical port and warehouse operations, an organisation that routinely processes employment, membership and operational records. Any exposure of such material can affect individuals whose data is held by the union and can complicate labour and logistics functions that depend on those records.
What happened
The only confirmed public information is the appearance of the International Longshore & Warehouse Union on the Avaddon leak site on 9 September 2021. The group claims to have exfiltrated internal files during a ransomware attack. No statement from the union confirming or denying the incident has been referenced in available reporting, and the scale of the data taken, the method of initial access, and any ransom demand or payment remain undisclosed.
Who is avaddon?
Avaddon is a ransomware operation that emerged in 2020 and conducted encryption attacks against organisations while maintaining a public leak site to pressure victims. The group typically exfiltrated data before encryption and listed non-paying targets on that site. Its activity was documented through multiple incidents before the operators discontinued the operation in 2021. Any specific claim about the International Longshore & Warehouse Union originates solely from the group’s listing and has not been independently verified in public records.
About International Longshore & Warehouse Union
The International Longshore & Warehouse Union is a labour organisation that represents workers employed in longshore, warehouse, and related maritime and logistics roles, primarily on the U.S. West Coast. Like other unions, it maintains records necessary for membership administration, collective bargaining, grievance handling, and benefit coordination. These functions require the storage of personal identifiers, employment histories, and internal communications. A compromise at such an organisation can therefore intersect with both individual privacy and the continuity of port and supply-chain operations.
What was likely exposed
The listing refers only to “internal files” without naming specific categories or quantities. The exact contents therefore remain unconfirmed. Organisations of this type commonly hold membership applications, dues records, contact details, employment documentation, and correspondence related to contract negotiations. Until the union or investigators publish a verified inventory, any description of the data remains speculative.
Why it matters
Exposure of internal union files can create practical risks for members whose personal or employment information appears in those records. Identity-related misuse, targeted scams, or reputational harm are possible outcomes when such material circulates. For the organisation itself, the incident may affect trust among members and may require additional resources to assess and contain any downstream effects on labour operations.
What to do if you're exposed
Individuals who believe their information may be held by the International Longshore & Warehouse Union can take the following steps:
- Monitor financial and benefits accounts for unusual activity.
- Place fraud alerts or credit freezes with major credit bureaus if employment or identity data is a concern.
- Change passwords for any union-related or linked online accounts and enable multi-factor authentication.
- Run a free exposure scan of their email address against known breach data to check for prior appearances of their information.
AICompiled with AI assistance from public sources and published under our editorial standards.
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Publicly posted by avaddon — 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.