70
Sophistication
2022
First Seen
69
Notoriety
62
Stealth
73
Immersive Rating
76
Impact
60
Tactics Variety

HAFNIUM

Chinese group behind the 2021 Microsoft Exchange Server exploitation spree. Attacks allowed mass access to internal emails across thousands of organizations. Known for stealthy exfiltration and fast-moving campaigns.

Key behaviours to watch:

Immersive coverage includes:

APT1
85
2004
80
45
72
88
70
APT10
92
2006
78
90
90
94
88
APT32
88
2014
70
79
83
87
83
APT34
84
2014
68
74
88
82
86
APT35
73
2014
65
65
81
74
80
Anonymous
40
2003
95
30
55
60
70
Chimera
68
2019
55
63
69
72
61
Cozy Bear
70
2012
57
71
64
64
58