DMARC Spoof Detection, Brazil
Clear Clear FilterThis page shows DMARC authentication failures originating from Brazil. Learn more about this data.
Failures (Filtered)
100
IPs (Filtered)
98
Networks (Filtered)
66
Messages (Filtered)
338
Analysis
Brazil has contributed 98 unique IP addresses across 100 failed authentication events, accounting for 338 messages across 66 networks. Activity spans from April 4, 2024 to April 15, 2026. The most active networks are Claro NXT Telecomunicacoes Ltda, TELEFÔNICA BRASIL S.A, and BRISANET SERVICOS DE TELECOMUNICACOES S.A.
Failures
Showing 21-30 of 100 failures, affecting 338 messages| Date ▼ | Source IP | Country | City | Network | Messages |
|---|---|---|---|---|---|
| 1/12/2026 | BR Brazil | Regente Feijó | 1 | ||
| 12/11/2025 | BR Brazil | Fortaleza | 4 | ||
| 10/15/2025 | BR Brazil | Lajedo | 8 | ||
| 10/3/2025 | BR Brazil | Taboão da Serra | 4 | ||
| 9/29/2025 | BR Brazil | Guarapuava | 4 | ||
| 9/28/2025 | BR Brazil | Barra do Garças | 4 | ||
| 9/12/2025 | BR Brazil | Condado | 4 | ||
| 8/27/2025 | BR Brazil | Rio de Janeiro | 4 | ||
| 7/21/2025 | BR Brazil | Rio de Janeiro | 1 | ||
| 7/20/2025 | BR Brazil | Anápolis | 1 |
Top Networks in Brazil
- Claro NXT Telecomunicacoes Ltda
- TELEFÔNICA BRASIL S.A
- BRISANET SERVICOS DE TELECOMUNICACOES S.A
- ACESSOLINE TELECOMUNICA??ES LTDA
- WHOIS_LOOKUP_FAILED
- JOSE CARLOS GONZAGA CARDOSO - ME
- Alares Cabo Servicos de Telecomunicacoes S.A.
- H NET SERVICOS DE COMUNICACAO E TECNOLOGIA LTDA
- A & G Serviços em TI
- V tal