Was Hunter hit by ransomware?

Hunter was listed by the Spacebears ransomware operation (Ireland), 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 Spacebears ransomware group?

Spacebears 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 Hunter breach?

Spacebears published data attributed to Hunter. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Hunter

Claimed by Spacebears · listed 3 months ago

Age

since listed · data leaked

Status timeline

ListedMay 26, 2026
Data leakeddate unknown

At a glance

Group: Spacebears
Status: Data leaked
Country: Ireland
Listed on leak site: May 26, 2026

About the victim

AI dossier — public-source company profile

Hunter is a B2B email intelligence and cold outreach platform founded in 2015 by Antoine Finkelstein and François Grante. The company provides tools to find professional email addresses, verify contacts, and send cold email campaigns at scale, serving small to mid-market businesses and freelancers rather than large enterprises.

Industry: Business Intelligence & Email Outreach Software
Founded: 2015

Attack summary

Severity: high — Confirmed exfiltration of employee and client PII at scale, plus financial documents from a B2B SaaS platform with significant user base. This represents material exposure of regulated personal data and business-sensitive information.

Spacebears claims to have exfiltrated personal information of employees and clients, database records, financial documents, and other files from Hunter. The group has published data and provided a link to the victim site.

high

Data the group says was taken

AI dossier — extracted from the leak post

employee personal information
client personal information
database records
financial documents

What the group claims

Hunter was created by Antoine Finkelstein and François Grante in 2015. Freshly graduated, they saw the untapped potential of cold emails and wanted to address the challenges of prospecting and finding contact information. To achieve great success rate while complying with privacy regulations, they decided to use emails found on the public web. Email Hunter was born. Soon rebranded as Hunter, the tool quickly became a game-changer in business intelligence. Within weeks, it attracted thousands of users thanks to its user-friendly interface, handy browser extension, affordable pricing, and data accuracy. Unlike its peers, Hunter aimed not at large enterprises but at making cold emailing accessible to all. Over time, Hunter grew into a comprehensive email outreach platform, offering everything from finding contact information to sending cold emails. Antoine and François, with a focused team, continued to empower professionals with simple, powerful tools.-Personal information of employees and clients-Databse-Financial documents-Other files https://hunter.io/

Sources

Victim sitehunter.io
Leak posthttp://5butbkrljkaorg5maepuca25oma7eiwo6a2rlhvkblb4v6mf3ki2ovid.onion/companies/40/hunter

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 Spacebears

Spacebears is a recently emerged ransomware group first observed in April 2024, operating with apparent financial motivations and demonstrating a broad targeting approach across multiple sectors and geographic regions. The group's origin and potential affiliations remain unclear due to limited public documentation from established threat intelligence sources, though their targeting pattern suggests a professional operation focused on maximizing financial returns rather than geopolitical objectives. With 117 known victims since their emergence, Spacebears has shown particular focus on organizations in the United States, Germany, Spain, Italy, and Canada, with their attacks primarily affecting technology, healthcare, manufacturing, and business services sectors, indicating they likely employ opportunistic targeting rather than sector-specific specialization. Their attack methodology, initial access vectors, and specific technical capabilities have not been extensively documented in public reporting from major cybersecurity firms or law enforcement agencies, limiting detailed analysis of their operational procedures and tools. Due to the group's recent emergence and limited public intelligence reporting, notable high-profile campaigns and specific victim details remain largely undocumented in established threat intelligence channels. The group's current operational status appears active given their recent emergence timeline, though comprehensive analysis is constrained by the lack of detailed public reporting from authoritative cybersecurity sources. The group has been linked to 209 public disclosures across our corpus. First observed on a leak site on April 29, 2024; most recent post August 22, 2026. The operation is currently active.

Also tracked as: space bears.

Timeline of this disclosure

May 26, 2026Hunter listed by Spacebearson the group's public leak site

Other recent disclosures by Spacebears

Spacebears has been linked to 209 public victims on Darkfield. A sample of the most recent:

See the full Spacebears dossier →

Sector and geography

Geographically, Hunter is reported in Ireland, a country with 17 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Spacebears means Hunter 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, NCSC-IE (Ireland), as required for your jurisdiction.
Monitor for the data appearing on Spacebears'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.