Disclosure context

About Killsecurity

Killsecurity is a relatively new ransomware group that emerged in March 2024, operating with apparent financial motivations and demonstrating rapid expansion in their victim targeting. The group's origin and affiliations remain unclear due to limited public documentation from major threat intelligence sources, though their global targeting pattern suggests a sophisticated operation. Based on available victim data, Killsecurity has compromised 276 organizations primarily across the United States, India, United Kingdom, Brazil, and Belgium, with a particular focus on healthcare, technology, business services, and financial sectors. The group's attack methodology, encryption techniques, and specific tools remain undocumented in public threat intelligence reports from established security firms. Notable campaigns and high-profile victims have not been extensively documented by major cybersecurity organizations or law enforcement agencies, likely due to the group's recent emergence. Killsecurity appears to remain active as of current reporting, though comprehensive analysis of their operations is limited by the lack of detailed technical documentation from reputable threat intelligence sources. The group has been linked to 277 public disclosures across our corpus. First observed on a leak site on March 21, 2024; most recent post May 15, 2026. The operation is currently active.

Timeline of this disclosure

May 15, 2026op4Fans listed by Killsecurityon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Media / Content Creation Platform sector.

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.

Ransomware victim disclosure

← All victims

op4Fans

Claimed by Killsecurity · listed 6 days ago

Age

since listed · listed for ransom

Status timeline

Listed
May 15, 2026

Current state: Listed for ransom

At a glance

Group: Killsecurity
Status: Listed for ransom
Sector: Media / Content Creation Platform
Listed on leak site: May 15, 2026

About the victim

AI dossier — public-source company profile

op4Fans is a platform designed to empower content creators — including influencers, artists, and entertainers — to monetize their work and engage with their audiences. It offers tools for sharing premium videos, photos, and PDFs, alongside private chats, on-demand media, and a private store for flexible content sales. The platform emphasizes privacy, asset security, and fan loyalty as core value propositions.

Industry: Adult Content Creator Monetization Platform

Attack summary

Severity: medium — The platform likely handles sensitive personal and financial data for content creators and potentially subscribers (PII, payment details, private media), and the adult/creator content context raises privacy risk. However, no exfiltration, data size, or proof files have been confirmed or published, warranting medium rather than high or critical.

KillSecurity has listed op4Fans as a victim on their leak site. No ransom amount, data size, or specific claims of encryption or exfiltration have been stated in the post; this appears to be an initial listing disclosure only.

medium

What the group claims

op4Fans is a dynamic platform empowering content creators to monetize their work and connect with their audience, offering tools to share premium videos, photos, PDFs, private chats, and on-demand media.

The leak post

captured from the group's site

Founded in 1997, iCare Software, based in the United States, delivers innovative management solutions for childcare and afterschool programs. Serving childcare centers, preschools, afterschool programs, and multi-site operations, iCare automates critical tasks like attendance tracking, staff scheduling, tuition collection, and compliance reporting. Its unique offerings include AI-driven analytics, business intelligence dashboards, and CRM tools to boost enrollment and staff retention. With seamless data migration and robust back-end technology, iCare empowers providers to focus on quality care while streamlining operations and driving growth.
Cadorim simplifies money transfers to Mauritania, offering a secure, user-friendly platform for individuals and businesses. With a focus on speed, affordability, and accessibility, Cadorim enables seamless transactions in just three clicks, available around the clock. The company ensures maximum security for every transfer, provides competitive exchange rates with no fees, and processes transactions instantly. Headquartered in Brussels, Belgium, with operations in Nouakchott, Mauritania, Cadorim serves customers seeking reliable, cost-effectiv…

Sources

Leak posthttp://ks5424y3wpr5zlug5c7i6svvxweinhbdcqcfnptkfcutrncfazzgz5id.onion

Source

Indexed 6 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.