Who is the PrinzEugen ransomware group?

PrinzEugen is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

Ransomware victim disclosure

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prinzkpn6d3itrgcytmsmlcpt5mgwn3ihpck2hsed5cezlbtbi3wklid.onion [NEW LEAK POSTED ON OUR NEW...

Q: What data was leaked in the prinzkpn6d3itrgcytmsmlcpt5mgwn3ihpck2hsed5cezlbtbi3wklid.onion [NEW LEAK POSTED ON OUR NEW... breach?

PrinzEugen published data attributed to prinzkpn6d3itrgcytmsmlcpt5mgwn3ihpck2hsed5cezlbtbi3wklid.onion [NEW LEAK POSTED ON OUR NEW.... Darkfield captured the leak post and a screenshot of the listing.

Claimed by PrinzEugen · listed 8 days ago

Age

since listed · data leaked

Status timeline

ListedJun 26, 2026
Data leakeddate unknown

At a glance

Group: PrinzEugen
Status: Data leaked
Listed on leak site: Jun 26, 2026

About the victim

AI dossier — public-source company profile

Unable to identify victim company. The leak post contains only repeated references to a Tor onion address with no company name, description, or identifying information.

Attack summary

Severity: low — Post is announcement-only with no victim identification, no proof files shown, no data inventory disclosed, and no operational impact stated. Insufficient evidence to assess actual compromise.

PrinzEugen group claims a new leak posted on their Tor site, but no details are provided regarding what data was compromised, whether encryption occurred, or what the attack scope was.

low

What the group claims

VISIT THE NEW SITE! prinzkpn6d3itrgcytmsmlcpt5mgwn3ihpck2hsed5cezlbtbi3wklid.onion prinzkpn6d3itrgcytmsmlcpt5mgwn3ihpck2hsed5cezlbtbi3wklid.onion prinzkpn6d3itrgcytmsmlcpt5mgwn3ihpck2hsed5cezlbtbi3wklid.onion prinzkpn6d3itrgcytmsmlcpt5mgwn3ihpck2hsed5cezlbtbi3wklid.onion

Sources

Leak posthttp://prinzfkbjiazbrur4mjje6mntjc4vydx3iatkkzycufoylqcoo4y7pqd.onion/prinzkpn6d3itrgcytmsmlcpt5mgwn3ihpck2hsed5cezlbtbi3wklid-onion-new-leak-posted-on-our-new-site

Source

Indexed 8 days 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 PrinzEugen

PrinzEugen is a relatively obscure ransomware group that first emerged in May 2026, appearing to be financially motivated based on their operational profile. The group's country of origin and potential affiliations with other ransomware operations remain unknown due to limited public reporting and intelligence documentation. With only one documented victim to date, detailed information about PrinzEugen's attack methodology, initial access vectors, and encryption techniques has not been extensively analyzed or publicly documented by major cybersecurity firms or law enforcement agencies. The group has demonstrated a focus on the financial services sector, with their sole known victim located in South Africa, though it is unclear whether this geographic and sectoral targeting represents a deliberate strategy or is simply reflective of their limited observed activity. Given the recent emergence of this group in 2026 and the lack of comprehensive reporting from established threat intelligence sources such as CISA, FBI, or Mandiant, PrinzEugen's current operational status and capabilities remain largely uncharacterized in the public threat landscape. The group has been linked to 11 public disclosures across our corpus. First observed on a leak site on May 4, 2026; most recent post June 28, 2026. The operation is currently active.

Also tracked as: prinz eugen.

Timeline of this disclosure

June 26, 2026prinzkpn6d3itrgcytmsmlcpt5mgwn3ihpck2hsed5cezlbtbi3wklid.onion [NEW LEAK POSTED ON OUR NEW... listed by PrinzEugenon the group's public leak site

Other recent disclosures by PrinzEugen

PrinzEugen has been linked to 11 public victims on Darkfield. A sample of the most recent:

See the full PrinzEugen dossier →

If your organisation is affected

A listing by PrinzEugen means prinzkpn6d3itrgcytmsmlcpt5mgwn3ihpck2hsed5cezlbtbi3wklid.onion [NEW LEAK POSTED ON OUR NEW... 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 PrinzEugen'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.