DMARC Spoof Detection, Brazil
Clear Clear FilterThis page shows DMARC authentication failures originating from Brazil. Learn more about this data.
Failures (Filtered)
90
IPs (Filtered)
88
Networks (Filtered)
61
Messages (Filtered)
304
Analysis
Brazil has contributed 88 unique IP addresses across 90 failed authentication events, accounting for 304 messages across 61 networks. Activity spans from April 4, 2024 to February 14, 2026. The most active networks are Claro NXT Telecomunicacoes Ltda, TELEFÔNICA BRASIL S.A, and BRISANET SERVICOS DE TELECOMUNICACOES S.A.
Failures
Showing 41-50 of 90 (failures, affecting 304 messages)| Date ▼ | Source IP | Country | City | Network | Messages |
|---|---|---|---|---|---|
| 6/14/2025 | BR Brazil | Gravataí | 2 | ||
| 6/14/2025 | BR Brazil | Mogi Guaçu | 3 | ||
| 6/13/2025 | BR Brazil | Ribeirão Preto | 1 | ||
| 6/13/2025 | BR Brazil | Sobral | 1 | ||
| 6/13/2025 | BR Brazil | Brasília | 5 | ||
| 6/11/2025 | BR Brazil | Carapicuíba | 4 | ||
| 6/10/2025 | BR Brazil | Porto Alegre | 4 | ||
| 6/9/2025 | BR Brazil | Guanambi | 4 | ||
| 5/31/2025 | BR Brazil | 1 | |||
| 5/20/2025 | BR Brazil | 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
- H NET SERVICOS DE COMUNICACAO E TECNOLOGIA LTDA
- A & G Serviços em TI
- JOSE CARLOS GONZAGA CARDOSO - ME
- Alares Cabo Servicos de Telecomunicacoes S.A.
- A & G Servi�os em TI