Was Maersk hit by ransomware?

Maersk was listed by the NotPetya ransomware operation (Denmark), 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 NotPetya ransomware group?

NotPetya 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 Maersk breach?

NotPetya published data attributed to Maersk. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Maersk

Claimed by NotPetya · listed 10 years ago

116m

Age

since listed · data leaked

Status timeline

ListedJan 1, 2017
Data leakeddate unknown

At a glance

Group: NotPetya
Status: Data leaked
Country: Denmark
Sector: Transportation
Listed on leak site: Jan 1, 2017

About the victim

AI dossier — public-source company profile

A.P. Moller-Maersk is a Danish shipping and logistics conglomerate offering integrated container logistics and supply chain services across 130+ countries. The company operates global container shipping, inland transport (road, rail, barge), and comprehensive logistics solutions across multiple industry sectors.

Industry: Shipping & Integrated Logistics

Attack summary

Severity: high — Confirmed operational disruption to critical global shipping and logistics infrastructure; NotPetya is a destructive wiper malware with significant impact on business continuity and dependent supply chains worldwide.

NotPetya wiper malware infected Maersk's systems, causing major disruption to global container shipping operations. The malware is destructive in nature rather than data-exfiltration focused.

high

What the group claims

A.P. Moller-Maersk, the Danish shipping and logistics conglomerate, was hit by the NotPetya wiper malware, causing major disruption to its global container shipping operations.

Sources

Victim sitemaersk.com

Source

Indexed 10 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.

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Disclosure context

About NotPetya

NotPetya is a ransomware operator currently tracked by Darkfield. The group has been linked to 1 public disclosures across our corpus. First observed on a leak site on July 29, 2026; most recent post January 1, 2017. The operation is currently active.

Timeline of this disclosure

January 1, 2017Maersk listed by NotPetyaon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Transportation sector, which has 45 disclosures indexed across all operators we track. Geographically, Maersk is reported in Denmark, a country with 13 ransomware disclosures in our corpus.

If your organisation is affected

A listing by NotPetya means Maersk 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, CFCS (Denmark), as required for your jurisdiction.
Monitor for the data appearing on NotPetya'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.