Sh4mefulNetwork: JUMPSTART-5
This page shows DMARC authentication failures originating from the JUMPSTART-5 network. Learn more about this data.
Network Information
- Countries:
- US
- Unique IPs:
- 1
- CIDR:
174.48.0.0/12
Analysis
This network has contributed 1 unique IP address across 3 failed authentication events, accounting for 3 messages. Activity spans from August 23, 2026 to August 30, 2026, with peak volume in August 2026 (3 events). The top countries by failure volume are United States (100%). The most active source IP from this network includes 174.57.194.48 (3 failures). A single IP dominates activity from JUMPSTART-5, suggesting a concentrated or persistent source rather than distributed infrastructure.
Failures Detected from this Network
Showing 1-3 of 3 failures, affecting 3 messages| Date ▼ | Source IP | Country | Messages |
|---|---|---|---|
| 8/30/2026 | US | 1 | |
| 8/26/2026 | US | 1 | |
| 8/23/2026 | US | 1 |
Countries