APT28
aka Fancy Bear, Forest Blizzard, BlueDelta, Unit 26165
A unit of Russia's military intelligence (GRU) that targets logistics and tech firms supporting Ukraine, as well as governments. It abuses email software flaws and even cameras at ports and border crossings.
- Alert level
- 3/ 5
- Reports & advisories (90 days)
- 1
- Known exploited CVEs
- 5
- Personal data leaked (disclosed)
- None confirmed
Attribution
- Assessed as Russian GRU 85th GTsSS, military unit 26165 — US NSA, FBI, CISA, UK NCSC, Germany, France and others
Exploited vulnerabilities and targeted products
CVE-2023-23397 CVE-2020-12641 CVE-2020-35730 CVE-2021-44026 CVE-2023-38831
If you run any of these products, first make sure they are updated to a fixed version.
How they attack
Entry
Emails pretending to be someone you know
Like a letter from a 'colleague' with an envelope that springs a trap when opened.
Entry
Abusing email software flaws
Like a letter that unlocks your door just by landing in the mailbox, without being opened.
Goal
Watching supply routes
Like hijacking station and port cameras to watch from afar what cargo passes and when.
Goal
Quietly stealing information
Like a spy who stays for months, copying files from the cabinet a little at a time.
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