Was asseco-ce.com hit by ransomware?

asseco-ce.com was listed by the ALP-001 ransomware operation (Poland), 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 ALP-001 ransomware group?

ALP-001 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 asseco-ce.com breach?

ALP-001 published data attributed to asseco-ce.com. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Asseco Central Europe

listed as asseco-ce.com · Claimed by ALP-001 · listed 3 months ago

Age

since listed · data leaked

Status timeline

ListedApr 3, 2026
Data leakeddate unknown

At a glance

Group: ALP-001
Status: Data leaked
Country: Poland
Sector: Technology
Listed on leak site: Apr 3, 2026

About the victim

AI dossier — public-source company profile

Asseco Central Europe (Asseco CE) is one of the leading providers of technology innovations and modern IT solutions in Central and Eastern Europe, with over 30 years of experience. The company delivers complex software projects for the commercial sector as well as public administration, with specialisations in banking, healthcare, insurance, utilities, and e-government. It operates across Slovakia, Czech Republic, Hungary, Germany, Austria, and Switzerland as part of the broader Asseco Group.

Industry: Enterprise Software & IT Solutions
Address: Bratislava, Slovakia (headquarters; also operates in Czech Republic, Hungary, Germany, Austria, Switzerland)

Attack summary

Severity: critical — Asseco CE provides IT systems to banks, health insurers, hospitals, and government institutions across multiple countries; exfiltration of 230 GB from such a provider creates high risk of exposure of regulated PII, financial data, and healthcare data belonging to their clients, with 24 GB already publicly released.

The ALP-001 group claims to have exfiltrated approximately 230 GB of data from Asseco Central Europe, publishing 24 GB as sample proof available for download on their leak page. No encryption claim is explicitly stated; the disclosure status is confirmed data_published.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Internal business documents
Software/IT project data
Potentially client data (banking, healthcare, insurance, public sector)
Sample files (24 GB published)

What the group claims

Country: Slovakia , Revenue: $4.4 billion Storage: 230GB Description: Asseco Central Europe (Asseco CE) is one of the strongest software houses in Central and Eastern Europe. It is active in Slovakia, the Czech Republic, Hungary, Germany, Austria and Switzerland. ** WE UPLOADED 24GB As Samples ** ** You Can Download Samples From Leak Page ** Deadline: 2026-04-11 21:51:49

Sources

Victim siteasseco-ce.com
Leak posthttp://b4riuxx7ypobdptctf6lyfcvgi6vn74iurzdh4kn2agbk7472dvywgyd.onion#asseco-ce.com

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 ALP-001

ALP-001 is an emerging ransomware group first observed in March 2026 with limited documented activity, having targeted only five known victims to date with a focus on financially motivated cybercrime. Due to the group's recent emergence and low victim count, their country of origin, operational structure, and potential affiliations remain unknown with no public documentation from major security firms or law enforcement agencies regarding their organizational structure. Their attack methodology, encryption techniques, and initial access vectors have not been publicly analyzed or reported by reputable security researchers, though their targeting pattern suggests a preference for technology and manufacturing sectors across developed nations including the United States, Japan, China, France, and Italy. No notable campaigns, high-profile incidents, or significant ransoms have been publicly documented for this group, and no law enforcement actions have been reported against ALP-001. The group's current operational status remains unclear due to limited public intelligence and their recent emergence in the threat landscape. The group has been linked to 17 public disclosures across our corpus. First observed on a leak site on March 21, 2026; most recent post April 8, 2026. The operation is currently active.

Timeline of this disclosure

April 3, 2026asseco-ce.com listed by ALP-001on the group's public leak site

Other recent disclosures by ALP-001

ALP-001 has been linked to 17 public victims on Darkfield. A sample of the most recent:

See the full ALP-001 dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,549 disclosures indexed across all operators we track. Geographically, asseco-ce.com is reported in Poland, a country with 21 ransomware disclosures in our corpus.

If your organisation is affected

A listing by ALP-001 means asseco-ce.com 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, CERT Polska (Poland), as required for your jurisdiction.
Monitor for the data appearing on ALP-001'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.