Disclosure context

About Quantum

Quantum is a ransomware group that emerged in September 2021, operating with primarily financial motivations and demonstrating a focus on high-value targets across English-speaking nations. The group's geographic targeting patterns and operational characteristics suggest possible connections to established ransomware ecosystems, though specific attribution or confirmed affiliations with other threat actors remain undocumented in public reporting. Quantum operators typically employ double extortion tactics, combining data encryption with the threat of public data exposure to maximize pressure on victims, and their campaigns have consistently targeted sectors with critical operational dependencies including business services, manufacturing, and information technology infrastructure. The group has maintained a relatively low public profile compared to other major ransomware operations, with their 68 documented victims representing a more selective approach to target acquisition rather than broad-scale campaigns. Despite limited public law enforcement reporting specifically focused on Quantum operations, the group's continued activity pattern suggests they remain an active threat as of recent observations, though comprehensive operational details remain scarce in publicly available threat intelligence reporting. The group has been linked to 68 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post December 9, 2022. The operation is currently inactive.

Also tracked as: QuantumLocker, Mount Locker, DagonLocker.

Timeline of this disclosure

August 19, 2022Shaw & Slavsky listed by Quantumon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, Shaw & Slavsky is reported in United States, a country with 7,392 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

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Shaw & Slavsky

Claimed by Quantum · listed 4 years ago

45m

Age

since listed · data leaked

Status timeline

Listed
Aug 19, 2022
Data leaked

At a glance

Group: Quantum
Status: Data leaked
Country: United States
Sector: Manufacturing
Listed on leak site: Aug 19, 2022

About the victim

AI dossier — public-source company profile

Shaw & Slavsky is a US-based manufacturer founded in 1932, specializing in point-of-purchase (POP) signs and merchandising solutions for grocery and retail clients. The company offers both stock and custom signage and fixtures, operating over 100,000 square feet of manufacturing capacity.

Industry: Retail Signage & Merchandising Solutions Manufacturing
Founded: 1932

Attack summary

Severity: medium — Data is marked as published (disclosed status: data_published), indicating confirmed exfiltration or release, but no specific sensitive data categories (PII, financial, medical) or scale are detailed in the post, limiting severity to medium.

The Quantum ransomware group claims to have attacked Shaw & Slavsky and has published data, indicating exfiltration or disclosure of company data, though specific data categories and volume are not detailed in the post.

medium

What the group claims

Shaw & Slavsky was founded in 1932 as a manufacturer of POP signs for grocery retailers. Since our inception, we have provided innovative signage and merchandising solutions for retailers. We have over 100,000 square feet of manufacturing capacity to build stock and custom signage and fixtures.

Source

Indexed 4 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.