Was ManagementPro hit by ransomware?

ManagementPro was listed by the Arcusmedia ransomware operation, 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 Arcusmedia ransomware group?

Arcusmedia 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 ManagementPro breach?

Arcusmedia published data attributed to ManagementPro. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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ManagementPro Inc.

listed as ManagementPro · Claimed by Arcusmedia · listed 7 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedAug 24, 2026
Data leakeddate unknown

At a glance

Group: Arcusmedia
Status: Data leaked
Sector: Professional Services
Listed on leak site: Aug 24, 2026

About the victim

AI dossier — public-source company profile

ManagementPro Inc. is a computer software company specializing in ERP and business management systems. Headquartered in Silicon Valley, California, with a support and development team in Mexico, the company has served clients for 11 years with enterprise software solutions.

Industry: Enterprise Resource Planning (ERP) Software
Address: Silicon Valley, California, USA (headquarters); México (support and development team)

Attack summary

Severity: medium — Confirmed data disclosure by the group (post marked 'data_published') with exfiltration implied, but the truncated leak post provides insufficient detail on data sensitivity or scope. No regulated data categories explicitly confirmed. Absence of substantial proof material or operational disruption details suggests medium rather than high severity.

The arcusmedia group claims to have compromised ManagementPro Inc. and obtained data. The leak post indicates data exfiltration with a stated leak timeline of 7 days, though specific data categories and operational impact are not detailed in the truncated post.

medium

Data the group says was taken

AI dossier — extracted from the leak post

company data
business records

What the group claims

www.mproerp.comManagementPro Inc. is a Computer Software Company, specialized in ERP Solut Deadline: 2026-08-31 13:50:00.000000

The leak post

captured from the group's site

###### www.mproerp.comManagementPro Inc. is a Computer Software Company, specialized in ERP Solutions wih Headquarters in Silicon Valley, California and a Support and Developement Team located in México. For the last 11 years we’ve been helped companies every day throw our software solutions. Our Business Management Systems and ERP Systems are designed to be extremelyEST SELL : 5 DaysEST LEAK : 7 Days

Screenshot of the leak post

Sources

Leak posthttp://arcuufpr5xxbbkin4mlidt7itmr6znlppk63jbtkeguuhszmc5g7qdyd.onion/?p=793

Source

Indexed 7 hours 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 Arcusmedia

Arcusmedia is a relatively new ransomware group that emerged in May 2024, operating with apparent financial motivations based on their targeting patterns across multiple countries and sectors. The group's origin and potential state affiliations remain unclear given limited public documentation from established threat intelligence sources, though their targeting of victims across Brazil, the United States, Spain, UAE, and Mexico suggests either a geographically distributed operation or deliberate international scope. With 98 documented victims in a short operational timeframe, Arcusmedia has demonstrated notable activity levels, primarily focusing on technology, business services, agriculture and food production, and transportation/logistics sectors, though their targeting appears opportunistic rather than strategically focused given the "Not Found" classification as their primary sector target. Limited public reporting from major cybersecurity firms and law enforcement agencies means specific details about their attack methodologies, initial access vectors, encryption techniques, or whether they employ double extortion tactics remain undocumented in authoritative sources. No major campaigns, high-profile victims, or significant law enforcement actions against Arcusmedia have been publicly reported by CISA, FBI, or established threat intelligence organizations. Current operational status appears active based on the recent emergence timeframe, though comprehensive threat intelligence profiles from reputable sources have not yet been published given the group's recent appearance in the threat landscape. The group has been linked to 109 public disclosures across our corpus. First observed on a leak site on May 15, 2024; most recent post August 24, 2026. The operation is currently inactive.

Also tracked as: arcus media.

Timeline of this disclosure

August 24, 2026ManagementPro listed by Arcusmediaon the group's public leak site

Other recent disclosures by Arcusmedia

Arcusmedia has been linked to 109 public victims on Darkfield. A sample of the most recent:

See the full Arcusmedia dossier →

Sector and geography

This disclosure adds to ransomware activity in the Professional Services sector, which has 14 disclosures indexed across all operators we track.

If your organisation is affected

A listing by Arcusmedia means ManagementPro 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 Arcusmedia'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.