Disclosure context

About Flocker

Flocker is a relatively new ransomware group that emerged in May 2024, operating with apparent financial motivations and having compromised at least 59 known victims within a short operational timeframe. The group's origin and affiliations remain largely undocumented by major threat intelligence organizations, with no confirmed country of origin or clear operational model regarding RaaS capabilities established in public reporting. Based on available targeting data, Flocker appears to employ opportunistic attack methodologies that have successfully compromised organizations across diverse sectors including technology, public sector, financial services, and transportation/logistics, though specific technical details regarding their initial access vectors, encryption methods, or data exfiltration practices have not been publicly documented by authoritative sources. The group has demonstrated a notable geographic reach with victims identified across the United States, UAE, Taiwan, Canada, and Zambia, suggesting either broad targeting capabilities or affiliate operations, though no specific high-profile campaigns or major incidents have been publicly attributed to them by federal agencies or established security researchers. As of current reporting, Flocker appears to remain active given their recent emergence timeline, though comprehensive threat intelligence regarding their operations remains limited in open-source reporting from authoritative cybersecurity organizations. The group has been linked to 59 public disclosures across our corpus. First observed on a leak site on May 3, 2024; most recent post July 31, 2025. The operation is currently inactive.

Timeline of this disclosure

July 31, 2025Ieee-apscon.org listed by Flockeron the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 2,524 disclosures indexed across all operators we track. Geographically, Ieee-apscon.org is reported in United States, a country with 7,392 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

← All victims

IEEE APSCON (Applied Sensors Conference)

listed as Ieee-apscon.org · Claimed by Flocker · listed 10 months ago

Age

since listed · data leaked

Status timeline

Listed
Jul 31, 2025
Data leaked

At a glance

Group: Flocker
Status: Data leaked
Country: United States
Sector: Technology
Listed on leak site: Jul 31, 2025

About the victim

AI dossier — public-source company profile

IEEE APSCON is an annual applied sensors conference organized by the IEEE Sensors Council. The 2026 edition was held in New Delhi, India, and features academic presentations, keynotes, networking, and competition tracks related to sensor technology and applications.

Industry: Professional Association & Conference Management
Address: New Delhi, India

Attack summary

Severity: high — Confirmed exfiltration and publication of attendee PII (names, contact information, registration data) at scale from an international academic conference. This impacts potentially thousands of researchers, academics, and industry professionals.

Flocker claims to have breached the APSCON2025 event infrastructure, gaining access to the full attendees guest list and conference registration system. The group has published data from this breach.

high

Data the group says was taken

AI dossier — extracted from the leak post

attendee personal information
guest list
conference registration records
attendee contact details

What the group claims

To The IEEE Sensors Council We Have Breached APSCON2025 Event And Full Attendees Guest List And Registry System And Global […]

Sources

Victim siteIeee-apscon.org
Leak posthttp://flock4cvoeqm4c62gyohvmncx6ck2e7ugvyqgyxqtrumklhd5ptwzpqd.onion/?p=490

Source

Indexed 10 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.