Was UFCW Local 135 hit by ransomware?

UFCW Local 135 was listed by the Cicada3301 ransomware operation (United States), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Cicada3301 ransomware group?

Cicada3301 is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the UFCW Local 135 breach?

Cicada3301 published data attributed to UFCW Local 135. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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UFCW Local 135

Claimed by Cicada3301 · listed 2 years ago

23m

Age

since listed · data leaked

Status timeline

ListedAug 22, 2024
Data leakeddate unknown

At a glance

Group: Cicada3301
Status: Data leaked
Country: United States
Sector: Business Services
Listed on leak site: Aug 22, 2024

About the victim

AI dossier — public-source company profile

UFCW Local 135 is a labor union local affiliated with the UFCW International Union, representing workers across the United States and Canada. The organization advocates for better wages, benefits, and workplace rights for its members.

Industry: Labor Union & Worker Advocacy

Attack summary

Severity: medium — Confirmed data exfiltration threat with published status, but no proof files shown, no specific sensitive data categories detailed, and no ransom demand stated. Union member PII could be at scale, warranting medium rather than low.

Cicada3301 claims to have exfiltrated data from UFCW Local 135 and threatens to publish it if the organization does not contact them. No specific data types or volumes are disclosed in the available post.

medium

Data the group says was taken

AI dossier — extracted from the leak post

union member records
organizational files

What the group claims

UFCW International Members of UFCW Local 135 have the backing of more than 1.3 million fellow members of the UFCW International Union across the United States and Canada. Together, we are an effective force for better wages, secure benefits and stronger rights at the workplace. Data will be released soon if the company doesn't contact us!

Sources

Victim siteufcw135.com
Leak posthttp://cicadabv7vicyvgz5khl7v2x5yygcgow7ryy6yppwmxii4eoobdaztqd.onion/bsik981hyxgu2yl7v89yt564h6ib26nf

Source

Indexed 2 years ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Cicada3301

Cicada3301 is a recently emerged ransomware group that began operations in June 2024, primarily motivated by financial gain through extortion activities targeting organizations across multiple sectors. The group's origin and affiliations remain largely undocumented in public threat intelligence reporting, with limited information available regarding their operational structure or potential connections to other cybercriminal organizations. Based on observed targeting patterns, Cicada3301 has demonstrated a preference for attacking business services, technology, manufacturing, and financial sector organizations, with their operations concentrated primarily in English-speaking countries including the United States, United Kingdom, and Canada, as well as extending to Spain and Singapore. The group has successfully compromised approximately 75 known victims since their emergence, though specific details regarding their attack methodologies, initial access vectors, encryption techniques, and extortion tactics have not been extensively documented in publicly available threat intelligence reports from major cybersecurity firms or government agencies. Given the limited public documentation available from CISA, FBI, Mandiant, or other reputable security researchers, the group's current operational status, technical capabilities, and specific attack infrastructure remain largely uncharacterized in open-source intelligence reporting. As of the most recent observations, Cicada3301 appears to remain active in conducting ransomware operations, though comprehensive analysis of their tactics, techniques, and procedures awaits more detailed public reporting from established threat intelligence sources. The group has been linked to 75 public disclosures across our corpus. First observed on a leak site on June 20, 2024; most recent post September 4, 2025. The operation is currently inactive.

Timeline of this disclosure

August 22, 2024UFCW Local 135 listed by Cicada3301on the group's public leak site

Other recent disclosures by Cicada3301

Cicada3301 has been linked to 75 public victims on Darkfield. A sample of the most recent:

See the full Cicada3301 dossier →

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 3,796 disclosures indexed across all operators we track. Geographically, UFCW Local 135 is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Cicada3301 means UFCW Local 135 appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
Monitor for the data appearing on Cicada3301's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.