ProssibrSecurity, privacy, and research

Tools

Tools

Well-known services explained with use cases, limitations, and privacy warnings.

ToolsBeginner

DNS Lookup

A guide to querying DNS records without confusing technical presence with legitimacy.

  • DNS
  • OSINT
ToolsBeginner

Have I Been Pwned

A service for checking email addresses and passwords exposed in known incidents.

  • Accounts
  • Awareness
ToolsBeginner

Registro.br WHOIS

Lookup for public information about .br domains and guidance for interpreting results.

  • DNS
  • OSINT
ToolsIntermediate

Security Headers

Public checking of HTTP security headers with contextual interpretation.

  • Web security
ToolsBeginner

VirusTotal

An aggregator for file, URL, domain, and indicator analysis, with important sharing implications.

  • Threat analysis
  • Privacy