Kraken
A ransomware group that appeared in 2025, stealing and encrypting data for payment. Cisco Talos notes a possible link to HelloKitty, and it attacks opportunistically across sectors.
- Alert level
- 1/ 5
- Reports & advisories (90 days)
- 0
- Known exploited CVEs
- 0
- Personal data leaked (disclosed)
- None confirmed
How they attack
Entry
Exploiting exposed file sharing
Like reaching through a mail slot that faces the street (exposed file sharing) to unlock the door.
Inside
Sizing up the systems first
Like a burglar who measures the house first to decide which rooms to hit fastest.
Goal
Steal first, then lock up
Like taking the files, then locking the office, and threatening on both counts.
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