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

December 9, 2025playroll listed by Killsecurityon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, playroll is reported in United Kingdom, a country with 902 ransomware disclosures in our corpus.

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

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playroll

Claimed by Killsecurity · listed 5 months ago

Age

since listed · data leaked

Status timeline

Listed
Dec 9, 2025
Data leaked

At a glance

Group: Killsecurity
Status: Data leaked
Country: United Kingdom
Sector: Not Found
Listed on leak site: Dec 9, 2025

About the victim

AI dossier — public-source company profile

Playroll is a global HR, payroll, and compliance platform headquartered in the United Kingdom. It offers Employer of Record (EOR) services, contractor management, global payroll processing across 35+ regions, immigration support in 95+ countries, and related workforce solutions for businesses of all sizes. The platform serves startups, small businesses, and enterprises seeking compliant international hiring and payroll management.

Industry: Global HR, Payroll & Compliance Technology (EOR / HRTech)
Employees: 51-200

Attack summary

Severity: high — Playroll processes payroll, HR, and compliance data for global employers and their workforces, meaning any confirmed exfiltration would likely encompass sensitive employee PII (names, banking details, salaries, tax information, immigration records) at scale across multiple countries. The 'data_published' status elevates severity even absent explicit proof details.

KillSecurity claims to have published data related to Playroll (disclosed status: data_published), though the leak post contains minimal detail — no ransom amount, no stated data volume, and only a single disclosure slot noted. The nature of exfiltrated data and scope of the attack have not been elaborated upon in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Unknown — no data inventory specified in leak post

What the group claims

Price ??? Disclosures 0/1

Sources

Victim siteplayroll.com

Source

Indexed 5 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.