DMARC Spoof Detection, Brazil
Clear Clear FilterThis page shows DMARC authentication failures originating from Brazil. Learn more about this data.
Failures (Filtered)
107
IPs (Filtered)
103
Networks (Filtered)
68
Messages (Filtered)
346
Analysis
Brazil has contributed 103 unique IP addresses across 107 failed authentication events, accounting for 346 messages across 68 networks. Activity spans from April 4, 2024 to May 16, 2026. The most active networks are Claro NXT Telecomunicacoes Ltda, TELEFÔNICA BRASIL S.A, and BRISANET SERVICOS DE TELECOMUNICACOES S.A.
Failures
Showing 1-10 of 107 failures, affecting 346 messages| Date ▼ | Source IP | Country | City | Network | Messages |
|---|---|---|---|---|---|
| 5/16/2026 | BR Brazil | Itaituba | 1 | ||
| 5/13/2026 | BR Brazil | Brasília | 1 | ||
| 4/29/2026 | BR Brazil | São Paulo | 2 | ||
| 4/27/2026 | BR Brazil | Cruz Alta | 1 | ||
| 4/19/2026 | BR Brazil | Agudos do Sul | 1 | ||
| 4/16/2026 | BR Brazil | Sinop | 1 | ||
| 4/16/2026 | BR Brazil | Agudos do Sul | 1 | ||
| 4/15/2026 | BR Brazil | Sinop | 1 | ||
| 4/11/2026 | BR Brazil | Santo Antônio do Sudoeste | 4 | ||
| 4/10/2026 | BR Brazil | Vitória da Conquista | 4 |
Top Networks in Brazil
- Claro NXT Telecomunicacoes Ltda
- TELEFÔNICA BRASIL S.A
- BRISANET SERVICOS DE TELECOMUNICACOES S.A
- ACESSOLINE TELECOMUNICA??ES LTDA
- A & G Serviços em TI
- H NET SERVICOS DE COMUNICACAO E TECNOLOGIA LTDA
- V tal
- Alares Cabo Servicos de Telecomunicacoes S.A.
- JOSE CARLOS GONZAGA CARDOSO - ME
- WHOIS_LOOKUP_FAILED