Was Staples hit by ransomware?

Staples was listed by the coinbasecartel 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 coinbasecartel ransomware group?

coinbasecartel 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 Staples breach?

coinbasecartel published data attributed to Staples. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Staples

Claimed by Coinbasecartel · listed 3 months ago

Age

since listed · data leaked

Status timeline

ListedMar 11, 2026
Data leakeddate unknown

At a glance

Group: Coinbasecartel
Status: Data leaked
Country: United States
Sector: Consumer Services
Listed on leak site: Mar 11, 2026

About the victim

AI dossier — public-source company profile

Staples is a major American retail chain specializing in office supplies, business services, print and marketing, technology products, and furniture. Operating both physical stores across the United States and a large e-commerce platform at staples.com, the company serves individual consumers and business customers at scale. Staples reported approximately $8 billion in revenue and is one of the largest office-supply retailers in North America.

Industry: Office Supplies & Business Services Retail
Address: 500 Staples Drive, Framingham, MA 01702, United States
Employees: 10000+
Founded: 1986

Attack summary

Severity: high — Staples is a large retailer with millions of customers and business clients; confirmed exfiltration and active data publication ('Leaking' status) of a company at this scale likely involves significant volumes of PII and business data, constituting a high-severity disclosure even without a specific data inventory provided.

The coinbasecartel group claims to have exfiltrated data from Staples and lists the company as 'Leaking' status on their site, indicating data has been or is in the process of being published. No ransom amount or specific data volume was stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Customer records
Business account data
Internal corporate data
Employee information

Original description

AI-summarised, not from the leak post

Staples, Inc. is an American office retail company primarily involved in the sale of office supplies and related products through retail channels and business-to-business (B2B) oriented delivery operations. Its offerings include promo products, IT consulting, office furniture, printing services, and more. Its headquarters are located in Framingham, Massachusetts.

The leak post

captured from the group's site

System Breach • Coinbasecartel We are looking for new partners/insiders. Send us a message to dicuss We are looking for new partners/insiders. Send us a message to dicuss CRITICAL ANNOUNCEMENTS &times; Contact Update We have changed our contact method. We now exclusively use qTox Messenger for all communications. SimpleX and Session have been discontinued. Our Tox ID: A7580331D4D16453CCE86D7ADFBCF0CEED0D0D1AEA8F4DBEEBCA9E3B46308F260DE9B41BD838 TO APTIM You may have noticed the sudden, heavy silence. The corporate VPNs are dead. We have been the silent architects of your network for the past three weeks. While your &#34;elite&#34; investigators from Mandiant sat in your logs, we sat directly beside them burning through over a hundred of your corporate identities like disposable tools. we have had your entire network and internal protocols. HOW LONG WILL YOU KEEP YOUR THOUSANDS OF FIELD WORKERS LOCKED OUT? We have successfully exfiltrated the most sensitive engineering data held by any firm in your sectors We hold the complete Navisworks 3D models, P&amp;ID diagrams, and maintenance logic for your major energy plants. This includes the granular Honeywell DCS controller logic. We know…

Sources

Victim sitestaples.com
Leak posthttp://fjg4zi4opkxkvdz7mvwp7h6goe4tcby3hhkrz43pht4j3vakhy75znyd.onion/companies/staples

Source

Indexed 3 months 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 coinbasecartel

CoinbaseCartel is a ransomware group that emerged in September 2025 with financially motivated operations targeting organizations across multiple sectors and geographic regions. The group has demonstrated significant activity in a short timeframe, compromising at least 102 known victims primarily across the United States, United Arab Emirates, Germany, Canada, and Brazil. Their targeting patterns show a preference for technology companies, financial services organizations, manufacturing entities, and consumer services businesses, suggesting an opportunistic approach focused on organizations likely to have both valuable data and the financial resources to pay ransoms. Given the group's recent emergence and limited public documentation from established threat intelligence sources, details regarding their specific attack methodologies, infrastructure, and organizational structure remain largely unconfirmed by major cybersecurity firms or law enforcement agencies. The group appears to maintain active operations as of late 2025, though comprehensive analysis of their tactics, techniques, and procedures awaits further investigation and reporting by established threat intelligence organizations. The group has been linked to 187 public disclosures across our corpus. First observed on a leak site on September 15, 2025; most recent post June 10, 2026. The operation is currently active.

Also tracked as: coinbase cartel.

Timeline of this disclosure

March 11, 2026Staples listed by coinbasecartelon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Consumer Services sector, which has 396 disclosures indexed across all operators we track. Geographically, Staples is reported in United States, a country with 7,392 ransomware disclosures in our corpus.

If your organisation is affected

A listing by coinbasecartel means Staples 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.
Monitor for the data appearing on coinbasecartel'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.