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 January 16, 2024. The operation is currently inactive.

Also tracked as: QuantumLocker, Mount Locker, DagonLocker.

Timeline of this disclosure

August 23, 2022Moskowitz, Mandell & Salim, P.A. listed by Quantumon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Law Firms & Legal Services sector, which has 2 disclosures indexed across all operators we track. Geographically, Moskowitz, Mandell & Salim, P.A. 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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Moskowitz, Mandell & Salim, P.A.

Claimed by Quantum · listed 4 years ago

45m

Age

since listed · data leaked

Status timeline

Listed
Aug 23, 2022
Data leaked

At a glance

Group: Quantum
Status: Data leaked
Country: United States
Sector: Law Firms & Legal Services
Listed on leak site: Aug 23, 2022

About the victim

AI dossier — public-source company profile

Moskowitz, Mandell & Salim, P.A. is a U.S. law firm established in 1985 that provides legal services across governmental approval, commercial real estate, zoning and land use, corporate transactional law, estate planning, and community association law. The firm places particular emphasis on complex commercial litigation. It is based in the United States.

Industry: Law Firms & Legal Services – Commercial Real Estate & Litigation
Founded: 1985

Attack summary

Severity: critical — The firm handles highly sensitive legal matters including estate planning (containing PII and financial data), commercial real estate transactions, and complex litigation. Attorney-client privileged communications and confidential client PII are at stake. Data is marked as published, meaning exfiltrated data has been released publicly.

The Quantum ransomware group has disclosed data from Moskowitz, Mandell & Salim, P.A., with the post status indicating data has been published. No explicit ransom amount or data volume was stated in the post.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Client legal files
Real estate transaction documents
Estate planning records
Corporate transactional documents
Litigation case files
Potentially privileged attorney-client communications

What the group claims

Moskowitz, Mandell & Salim, P.A. was established in 1985 and provides legal services in areas of governmental approval, commercial real estate, zoning and land use, corporate transactional law, estate planning, and community association law with emphasis on complex commercial litigation. &ZeroWidthSpace;

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.