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M800 and CINNOX

Claimed by Beast · listed 2 days ago

2d
Age
since listed · data leaked

Status timeline

  1. ListedSep 10, 2026
  2. Data leakeddate unknown

At a glance

Group
Beast
Status
Data leaked
Country
Hong Kong
Sector
Technology
Listed on leak site
Sep 10, 2026

About the victim

AI dossier — public-source company profile

M800 is a Hong Kong-based cloud communications platform offering virtual numbers, SMS, voice calls, and AI-powered contact center solutions (CINNOX) to businesses globally. The company serves 1000+ enterprise customers across 200+ countries with 18+ years in the industry.

Industry
Cloud Communications & Contact Center Solutions

Attack summary

Severity: medium — Data has been published and the victim is a technology/communications company handling customer contact data and communications infrastructure; however, no specific sensitive data inventory, proof files, or operational disruption details are disclosed in the post.

The Beast group claims to have accessed M800's systems. The leak post does not specify what data was exfiltrated or whether encryption occurred, and no specific data types or operational impact are detailed.

medium

What the group claims

M800 helps businesses connect globally with virtual numbers, SMS, voice calls, CINNOX, and AI-powered call solutions. Reach and engage customers worldwide.

The leak post

captured from the group's site
M800 helps businesses connect globally with virtual numbers, SMS, voice calls, CINNOX, and AI-powered call solutions. Reach and engage customers worldwide.

Sources

Source

Indexed 2 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 beast

The Beast ransomware group is a relatively new threat actor that emerged in July 2025, operating with apparent financial motivations through their ransomware campaigns. With limited public documentation available from major security agencies, the group has demonstrated activity primarily targeting victims across the United States, United Kingdom, Brazil, South Korea, and Argentina, accumulating approximately 65 known victims since their emergence. Their targeting pattern shows a focus on healthcare organizations, manufacturing companies, educational institutions, and construction firms, suggesting an opportunistic approach rather than highly specialized sector expertise. The group's recent emergence means there is insufficient public intelligence from CISA, FBI, Mandiant, or other established security researchers regarding their specific attack methodologies, initial access vectors, or technical capabilities. Given the timeline of their first observation in mid-2025, Beast represents an active and emerging threat with their current operational status remaining unclear due to limited threat intelligence reporting from authoritative sources. The group has been linked to 113 public disclosures across our corpus. First observed on a leak site on July 29, 2025; most recent post September 12, 2026. The operation is currently active.

Timeline of this disclosure

  • September 10, 2026M800 and CINNOX listed by beast on the group's public leak site

Other recent disclosures by beast

beast has been linked to 113 public victims on Darkfield. A sample of the most recent:

See the full beast dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,577 disclosures indexed across all operators we track. Geographically, M800 and CINNOX is reported in Hong Kong, a country with 65 ransomware disclosures in our corpus.

If your organisation is affected

A listing by beast means M800 and CINNOX 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 beast'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.