Blackout Ransomware
ActiveThreat actor group tracked in the global ransomware database Β· Last disclosure: Jul 19, 2026
Threat Actor Analysis
Blackout is a ransomware threat group that has disclosed 3 victims in publicly accessible leak site data, representing 3% of all ransomware attacks tracked in this database. The earliest victim disclosure attributed to Blackout in our dataset dates to July 2026.
Geographically, Blackout has targeted organisations in 3 countries. The most frequently targeted nation is Japan with 1 victim organisations. Other heavily targeted nations include United States, United Kingdom.
Industry-wise, Blackout shows a concentration in the Technology sector. These industries are frequently targeted because they manage sensitive data, critical operations, or have lower tolerance for operational downtime β conditions that increase ransom payment likelihood.
Like most modern ransomware operations, Blackout likely employs a double extortion model: encrypting victim files while simultaneously exfiltrating data, creating dual pressure to pay the ransom. Victim organisations that refuse payment face having their data published on the group's dark web leak site.
Note: This profile is generated from public leak site disclosures aggregated via the ransomware.live API. Data is updated automatically. The victim table below shows the 3 most recent cached victims; the total victim count (3) reflects the complete database.
Recent Victim Disclosures (3 cached of 3 total)
| # | Organization | Country | Sector | Date |
|---|---|---|---|---|
| 1 |
yano.tokyo
yano.tokyo
|
π―π΅ Japan | Technology | Jul 19, 2026 |
| 2 |
www.miatech.net
www.miatech.net
|
πΊπΈ United States | Technology | Jul 19, 2026 |
| 3 |
bluebellgroup.com
bluebellgroup.com
|
π¬π§ United Kingdom | β | Jul 19, 2026 |
Frequently Asked Questions
What is Blackout ransomware?
Blackout is a ransomware threat group that has claimed 3 victims since its first known activity in July 2026. The group operates by infiltrating target networks, exfiltrating data, encrypting files, and threatening to publish stolen data on a dark web leak site if the ransom is not paid.
How many victims has Blackout attacked?
Blackout has claimed 3 victims in our database, representing 3% of all tracked ransomware attacks. The most targeted countries are Japan, United States, United Kingdom.
Which countries does Blackout target?
Blackout has attacked organizations in 3 countries. The top targeted countries are: Japan, United States, United Kingdom.
Which industries does Blackout target?
Blackout most frequently targets the Technology sectors based on victim disclosures in our database.
Is Blackout still active?
Blackout's most recent victim disclosure in our database was on July 19, 2026. Ransomware groups frequently rebrand or go dormant; monitor this page and our ransomware map for the latest activity.