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UNC5221

China · also known as UNC5337

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Stories · 30d

2

Last seen in the news

2026-10-16

CVEs mentioned

1

Activity in the news

Week of 09-14

0

Week of 09-21

0

Week of 09-28

0

Week of 10-05

0

Week of 10-12

2

CVEs mentioned alongside

CVE-2026-102764 9.8

Likely ATT&CK techniques

Keyword guesses from headlines, not confirmed attributions.

Timeline (last 30 days)

Prolific Chinese espionage group exploits BeyondTrust zero-day — CyberScoop, 2026-10-16
ARMORY CASTLE Exploits BeyondTrust — Google Threat Intelligence +4 sources, 2026-10-15