Ieee-apscon.org
flocker listed this organization on its leak site on Jul 31, 2025.
- Listing date
- Jul 31, 2025
- Attack date
- Jul 31, 2025
Listing text
To The IEEE Sensors Council We Have Breached APSCON2025 Event And Full Attendees Guest List And Registry System And Global […]
About the group
flocker posted its first listing on May 3, 2024 and has listed 59 organizations to date.
Flocker (also linked to the FSociety brand) is a ransomware-as-a-service group active since 2023–2024, targeting Windows and Linux systems via phishing, compromised RDP, and exploit kits using a double extortion model, and observed collaborating with FunkSec.
Learning center
What does this listing mean?
Ransomware groups move data out of the organization before encrypting systems and threaten to publish it if the ransom is not paid. This method is called double extortion.
The listing shows that the group claims to have targeted the organization. Whether the data was published is shown by the later status of the listing.
What should you do if your organization is listed on a leak site?
- Record the listing and any published sample files; do not visit the leak site from the corporate network.
- Isolate affected systems and preserve logs without deleting them.
- Determine which data left the organization; if personal data is involved, review notification obligations with your legal team.
- Make any decision about the ransom demand together with legal, management and incident response.
- Do not bring systems back online before the attacker’s entry point is closed.
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