Blackfield
Since Jun 29, 2026, Blackfield has listed 2 organizations on its leak site.
Listings per month
- Total listings
- 2
- First listing
- Jun 29, 2026
- Latest listing
- Jul 3, 2026
- MITRE ATT&CK techniques
- 0
Blackfield is classified as ransomware group.
It posted 2 listings in the last 12 months; the busiest month was June 2026 (1 listings).
Most targeted country: Brazil, with 1 listings (50% of the total).
Most targeted sector: Manufacturing, with 2 listings (100% of the total).
Targeted sectors
Showing 2 of 2 results
What does a ransomware group do?
Ransomware groups break into corporate networks, move data out and encrypt systems. If the ransom is not paid, they list the organization on a leak site and threaten to publish the data.
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.
Is your organization mentioned?
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