Qilin
aka Agenda, Phantom Mantis
The ransomware group behind the most confirmed incidents in Japan in 2025. It gets in with stolen credentials or Fortinet flaws and targets manufacturing, healthcare and more.
- Alert level
- 3/ 5
- Reports & advisories (90 days)
- 2
- Known exploited CVEs
- 2
- Personal data leaked (disclosed)
- None confirmed
Exploited vulnerabilities and targeted products
If you run any of these products, first make sure they are updated to a fixed version.
How they attack
Entry
Logging in with stolen passwords
Like buying someone's staff badge on the black market and simply walking in the front door.
Entry
Exploiting internet-facing devices
Like finding a broken lock on the company's front gate (VPN or firewall) and walking in.
Inside
Switching off security software
Like pulling the plug on the alarm system first, then searching the house at leisure.
Inside
Destroying backups first
Like disabling the fire extinguishers and emergency exits before starting the fire.
Goal
Double extortion: encrypt and leak
Like locking your safe and also taking copies of the papers inside, threatening to publish them unless you pay.
Recent articles
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