Kawa4096
A ransomware group that appeared around June 2025 and steals data to extort victims. It is reported to have targeted Japanese companies from the start, and US organizations have also been hit.
- Alert level
- 2/ 5
- Reports & advisories (90 days)
- 0
- Known exploited CVEs
- 0
- Personal data leaked (disclosed)
- None confirmed
How they attack
Inside
Picking out the important files
Like a burglar who skips the clutter and goes straight for the drawer with the bankbooks and deeds.
Goal
Borrowing a famous gang's look
Like wearing a notorious debt collector's uniform to scare people more.
Sources
Attributions are quoted as assessed by governments and security vendors. VulnPulse does not make attributions itself.
Leak counts only add up figures disclosed by the affected companies or authorities, never the attackers' own claims. We do not list victim names or link to leak sites.
The alert level is calculated automatically from reports and advisories in the last 90 days, known exploited vulnerabilities, and whether the group has targeted Japan.
Updated 2026-10-23 · daily