BianLian
A group that used to encrypt files but now only steals data and threatens to publish it. It targets critical infrastructure and professional services in the US and Australia.
- Alert level
- 3/ 5
- Reports & advisories (90 days)
- 0
- Known exploited CVEs
- 5
- Personal data leaked (disclosed)
- None confirmed
Attribution
- Assessed as likely based in Russia — US FBI, CISA and Australia's ASD
Exploited vulnerabilities and targeted products
CVE-2021-34473 CVE-2021-34523 CVE-2021-31207 CVE-2022-37969 CVE-2020-1472
If you run any of these products, first make sure they are updated to a fixed version.
How they attack
Entry
Exploiting internet-facing devices
Like finding a broken lock on the company's front gate (VPN or firewall) and walking in.
Entry
Logging in with stolen passwords
Like buying someone's staff badge on the black market and simply walking in the front door.
Goal
Quietly stealing information
Like a spy who stays for months, copying files from the cabinet a little at a time.
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