UFCW Local 135 Listed by cicada3301 Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

Members and staff connected to UFCW Local 135 may face practical risks after the local was listed by a ransomware group that claims to have taken internal files. When a labor organization appears on a leak site, the people whose records sit in those systems can confront identity theft, targeted scams, or misuse of employment and benefits information. Public detail remains limited, yet the listing itself is enough reason for anyone linked to the local to pay attention.

On August 22, 2024, the ransomware group cicada3301 publicly claimed responsibility for an attack on UFCW Local 135 and stated that internal files had been exfiltrated. The number of people affected is unknown, and the precise contents of the files have not been independently confirmed. The group’s own message asserted that data would be released soon if contact was not made.

Inside the incident

According to the available record, cicada3301 listed UFCW Local 135 on its leak site and described the event as a ransomware attack in which internal files were taken. The listing was reported on August 22, 2024. No confirmed figure for the number of individuals affected has been released, and technical details of how the intrusion occurred remain undisclosed. The group’s statement accompanying the listing included the claim that data would be released soon if the organization did not make contact. Beyond that assertion, public information does not describe negotiations, ransom demands, or any subsequent release of files.

Because the only concrete statements come from the group’s own listing, the incident should be treated as an unverified claim of compromise until further independent confirmation appears. No official confirmation of the full scope or of any payment has been included in the facts available.

Inside cicada3301

Cicada3301 is a ransomware operation that has appeared in public reporting as a group that practices double extortion: encrypting systems while also copying data and threatening to publish it if a ransom is not paid. Like other groups of this type, it maintains a leak site where it posts victim names and, in some cases, sample files or full archives. Public accounts of its activity describe opportunistic targeting across multiple sectors rather than a narrow focus on any single industry. The group’s listings are claims made by the actors themselves; they do not automatically constitute verified proof that every named organization suffered the full extent of the described intrusion.

In this instance, the facts record only that cicada3301 listed UFCW Local 135 and asserted that internal files had been exfiltrated and would be released if contact was not made. No additional statements attributed to the group about this specific victim appear in the provided record.

About UFCW Local 135

UFCW Local 135 is a local affiliate of the United Food and Commercial Workers International Union, which represents workers primarily in grocery, retail, food processing, and related industries. Locals of this kind typically manage membership records, dues information, health and pension benefits data, grievance files, and correspondence with employers. The broader UFCW International Union states that its members number more than 1.3 million across the United States and Canada; Local 135 is one of the regional bodies that serve those members on the ground.

A breach involving a union local is consequential because the organization holds information that can identify workers, their workplaces, their dependents, and their benefit entitlements. Even when the exact files taken remain unconfirmed, the type of data such an organization routinely maintains makes the listing relevant to members, staff, and their families.

What data was at risk

The facts state only that internal files were exfiltrated in a ransomware attack. No inventory of specific data categories—such as Social Security numbers, bank details, medical records, or membership lists—has been disclosed. Organizations of this kind commonly store personal identifiers, contact information, employment histories, and benefits-related records. Because those categories are typical rather than confirmed for this incident, it is not possible to state as fact which exact fields were taken. The precise contents remain unconfirmed.

The real-world impact

For individuals whose information may have been among the internal files, the practical risks include phishing attempts that reference union membership or benefits, fraudulent claims against health or pension accounts, and longer-term identity-theft exposure if personal identifiers were present. For the local itself, the consequences can include operational disruption, the cost of forensic review and notification, and the need to reassure members that their records are being protected. Because the number of people affected is unknown and the data types are not itemized, the scale of these risks cannot yet be quantified. The group’s claim that data would be released adds a further layer of uncertainty for anyone whose details might appear if a publication occurs.

If your data was in this claimed breach

If you are a member, employee, or dependent connected to UFCW Local 135, treat the listing as a prompt to take basic protective steps while waiting for any official notification. Concrete actions include:

• Monitor bank, credit-card, and benefits statements for unfamiliar activity.
• Place a free fraud alert or credit freeze with the major credit bureaus if personal identifiers may have been involved.
• Be skeptical of unsolicited emails, calls, or texts that reference the union, dues, or benefits and that ask for passwords or payments.
• Change passwords on any accounts that reuse credentials possibly stored by the local, and enable multi-factor authentication where available.
• Keep records of any official communications from the local about the incident.

Readers can also run a free exposure scan of their email address to check whether that address has already appeared in known breach data sets. Doing so provides one additional data point while official details continue to develop.

AICompiled with AI assistance from public sources and published under our editorial standards.