Sh4mefulNetwork: BLUECLOUD
This page shows DMARC authentication failures originating from the BLUECLOUD network. Learn more about this data.
Network Information
- WHOIS Owner:
- Microsoft (China) Co, Ltd.
- Countries:
- CN
- Unique IPs:
- 19
- CIDR:
-
139.219.0.0/16
Analysis
This network has contributed 19 unique IP addresses across 19 failed authentication events, accounting for 19 messages. Activity spans from September 13, 2024 to December 19, 2025, with peak volume in September 2024 (10 events). The top countries by failure volume are China (100%). The most active source IPs from this network include 139.219.146.109 (1 failure), 139.219.146.110 (1 failure), 139.219.146.104 (1 failure). Failures from BLUECLOUD, a cloud hosting provider, are concentrated in a single country, which may indicate a targeted campaign or regionally hosted infrastructure.
Failures Detected from this Network
Showing 1-19 of 19 failures, affecting 19 messages| Date ▲ | Source IP | Country | Messages |
|---|---|---|---|
| 9/13/2024 | CN | 1 | |
| 9/13/2024 | CN | 1 | |
| 9/13/2024 | CN | 1 | |
| 9/18/2024 | CN | 1 | |
| 9/18/2024 | CN | 1 | |
| 9/18/2024 | CN | 1 | |
| 9/18/2024 | CN | 1 | |
| 9/27/2024 | CN | 1 | |
| 9/27/2024 | CN | 1 | |
| 9/27/2024 | CN | 1 | |
| 10/23/2024 | CN | 1 | |
| 10/23/2024 | CN | 1 | |
| 11/12/2024 | CN | 1 | |
| 11/12/2024 | CN | 1 | |
| 11/21/2024 | CN | 1 | |
| 12/5/2024 | CN | 1 | |
| 12/18/2024 | CN | 1 | |
| 12/5/2025 | CN | 1 | |
| 12/19/2025 | CN | 1 |
Countries