Blog Espectro

Guias, análises e tutoriais sobre inteligência de fontes abertas, investigações digitais e segurança cibernética.

OSINT

O que é OSINT? O Guia Completo para Inteligência de Fontes Abertas em 2026

OSINT representa 80-90% da inteligência coletada por agências ocidentais. Aprenda o que é, quem usa e como começar neste guia completo.

Fernanda Schmidt13 jan 202618 minLer →
Segurança

Meu Email Foi Vazado? Como Verificar Grátis em 2026

3.322 violações de dados só nos EUA em 2025. Aprenda 5 formas gratuitas de verificar se seu email foi comprometido e o que fazer.

Fernanda Schmidt20 jan 202614 minLer →
Investigação

Como Consultar CPF e CNPJ com OSINT em 2026

Descubra como investigadores usam fontes abertas para cruzar dados de CPF e CNPJ, os limites da LGPD e as ferramentas disponíveis.

Fernanda Schmidt27 jan 202615 minLer →
Tutorial

OSINT por Email: Descubra Tudo Vinculado a um Endereço de Email

Um endereço de email pode revelar contas sociais, vazamentos, dados de domínio e muito mais. Veja o passo a passo completo.

Fernanda Schmidt3 fev 202614 minLer →
Investigação

Como Rastrear um Username em 500+ Sites com OSINT

Usernames são o pivot mais subestimado em OSINT. Aprenda a usar Sherlock, Maigret e plataformas automatizadas para rastrear perfis.

Fernanda Schmidt10 fev 202614 minLer →
Investigação

OSINT para Investigadores: Guia Prático Brasil 2026

Fontes públicas brasileiras, workflows de investigação e ferramentas recomendadas para o cenário OSINT no Brasil.

Fernanda Schmidt17 fev 202616 minLer →
Tutorial

Como Montar um Dossiê de Investigação com OSINT

Estrutura, coleta, preservação de evidências e erros comuns ao montar dossiês de investigação com inteligência de fontes abertas.

Fernanda Schmidt24 fev 202615 minLer →
Tutorial

OSINT por Telefone: Como Descobrir Quem Ligou em 2026

Busca reversa, cruzamento com redes sociais e peculiaridades do Brasil com WhatsApp, DDDs e ferramentas especializadas.

Fernanda Schmidt3 mar 202613 minLer →
Investigação

OSINT para Fraude: Como Identificar Empresas de Fachada

Sinais de alerta, fontes de dados e um caso prático de como investigar empresas suspeitas usando inteligência de fontes abertas.

Fernanda Schmidt10 mar 202615 minLer →
Tutorial

Análise de Domínio com OSINT: Guia Completo para 2026

WHOIS, DNS, certificados SSL, Shodan e técnicas para identificar domínios de phishing e mapear infraestrutura.

Fernanda Schmidt17 mar 202614 minLer →
Investigação

OSINT para Due Diligence: Checklist Completo do Investigador

12 pontos de verificação, KYC/AML, e como montar relatórios de due diligence com inteligência de fontes abertas.

Fernanda Schmidt24 mar 202616 minLer →
Ferramentas

12 Ferramentas OSINT Gratuitas para Investigações em 2026

De Sherlock a Shodan: as melhores ferramentas gratuitas para email, username, domínio e vazamentos, organizadas por categoria.

Fernanda Schmidt31 mar 202615 minLer →
Comparativo

Espectro vs Alternativas: Comparativo de Plataformas OSINT 2026

Espectro vs OSINT Industries, Maltego e SpiderFoot. Tabela comparativa completa com preços, fontes e recursos.

Fernanda Schmidt7 abr 202614 minLer →

English Articles

42 guides on OSINT techniques, AI + OSINT, investigations, compliance, and tools.

Fundamentals

What Is OSINT? Complete Open Source Intelligence Guide

OSINT drives 80-90% of Western intelligence work in a $12.7B market. Learn what open source intelligence is, who uses it, and how to start.

Fernanda Schmidt12 apr 202618 minRead →
Legal

Is OSINT Legal?

OSINT is legal when you collect publicly available information. Learn the bright lines, gray zones, and GDPR/CFAA/LGPD boundaries.

Fernanda Schmidt12 apr 202612 minRead →
Tools

15 Best OSINT Tools for Investigations (2026)

Maltego, Shodan, theHarvester, Sherlock, and 10 more tools ranked by effectiveness for email, username, domain, and breach monitoring.

Fernanda Schmidt12 apr 202616 minRead →
Technique

Reverse Email Lookup: Find Who's Behind Any Email

5 methods to trace an email address—name, social accounts, breaches, domain registration, and IP headers—with tools and case study.

Fernanda Schmidt12 apr 202614 minRead →
Technique

Username Search: Find Accounts Across 500+ Sites (EN)

Sherlock, Maigret, SpiderFoot, and Espectro: how to pivot usernames across Discord, Twitch, Reddit, Instagram, and 400+ platforms.

Fernanda Schmidt12 apr 202613 minRead →
Technique

Phone Number Lookup: Find Who Called You (2026)

Reverse phone lookup methods, social media correlation, breach databases, and CallerId APIs to unmask unknown callers.

Fernanda Schmidt12 apr 202612 minRead →
Security

Has Your Data Been Breached? How to Check

3,322 data breaches in 2025. Learn 5 ways to check if your email, phone, or username has been compromised and remediation steps.

Fernanda Schmidt12 apr 202611 minRead →
Privacy

Your Digital Footprint: What the Internet Knows

5.66B social media users. Your digital footprint is larger than you think—audit yours and reduce OSINT attack surface.

Fernanda Schmidt12 apr 202613 minRead →
Technique

Social Media Investigation: OSINT Techniques (2026)

Account verification, geolocation from posts, fake profile detection, and OSINT across Facebook, Instagram, TikTok, LinkedIn.

Fernanda Schmidt12 apr 202614 minRead →
Technique

How to Find Hidden Social Media Profiles

Private accounts, deleted profiles, archived posts, and behavioral analysis to uncover hidden social media presence.

Fernanda Schmidt12 apr 202613 minRead →
Investigation

Tracing Fake Social Accounts: Advanced OSINT Methodology

Attribution, pattern recognition, payment linkage, and device fingerprinting to trace inauthentic accounts and coordinated networks.

Fernanda Schmidt12 apr 202613 minRead →
Technique

Domain Investigation with OSINT: DNS, WHOIS & Beyond

WHOIS parsing, DNS enumeration, SSL certificate analysis, Shodan queries, and infrastructure mapping for threat hunting.

Fernanda Schmidt12 apr 202614 minRead →
Forensics

Image Forensics: Extract Hidden Location Data (EXIF)

GPS metadata, device fingerprinting, timestamp verification, and image manipulation detection using open source tools.

Fernanda Schmidt12 apr 202612 minRead →
Investigation

OSINT for Fraud Prevention: Corporate Investigation Checklist

Shell company detection, beneficial ownership verification, fraud economics, and $12M case study of corporate fraud via OSINT.

Fernanda Schmidt12 apr 202614 minRead →
Professional

OSINT Due Diligence: Investigator's Checklist 2026

12-point verification, KYC/AML workflow, beneficial owner verification, and compliance framework for due diligence investigations.

Fernanda Schmidt12 apr 202615 minRead →
HR

Using OSINT for Talent Acquisition Screening

Background checks, expertise verification, board memberships, and legal compliance framework for hiring with open source intelligence.

Fernanda Schmidt12 apr 202613 minRead →
Compliance

OSINT for KYC Compliance: A Global Perspective

Know Your Customer workflow, PEP screening, sanctions matching, and AML (Anti-Money Laundering) integration with open source data.

Fernanda Schmidt12 apr 202614 minRead →
Journalism

OSINT for Journalism: Uncovering Truths

Source verification, archive resources, geolocation in conflict reporting, and fact-checking via open source intelligence.

Fernanda Schmidt12 apr 202613 minRead →
Guide

Comprehensive OSINT Background Check Guide

7 domains of background checks (identity, employment, education, criminal, credit, social, digital) using open source methods.

Fernanda Schmidt12 apr 202614 minRead →
Privacy

Defensive OSINT: Auditing Your Digital Footprint

Offensive OSINT flipped: protect yourself. Audit privacy settings, remove inactive accounts, monitor breaches, and harden your digital presence.

Fernanda Schmidt12 apr 202613 minRead →
Advanced

Dark Web OSINT: Reality vs. Myth

Tor circuit analysis, marketplace monitoring, stylometric attribution, and OpSec protocols for dark web intelligence gathering.

Fernanda Schmidt12 apr 202614 minRead →
Technique

OSINT Geolocation: Techniques and Tools

Satellite imagery, sun angle calculations, metadata extraction, IP geolocation, and confidence assessment for location verification.

Fernanda Schmidt12 apr 202613 minRead →
Threat Hunt

Reverse IP Lookup: Infrastructure Mapping & Threat Hunting

SSL certificate clustering, passive DNS, WHOIS history, and shodan queries to map infrastructure and identify threat actors.

Fernanda Schmidt12 apr 202613 minRead →
Security

Advanced Domain Intelligence for Security

Passive DNS queries, DNS history, SSL fingerprinting, and registrant correlation for infrastructure security intelligence.

Fernanda Schmidt12 apr 202612 minRead →
AI

AI vs Human OSINT: Will AI Replace Investigators?

LLMs for analysis vs. human context, prompt engineering, verification, and the future of human-AI OSINT teams.

Fernanda Schmidt12 apr 202614 minRead →
AI

Mastering OSINT Prompting: The Definitive Guide

R.O.C.E. framework, model comparisons (GPT-4, Claude, Gemini), API integration, and ethical considerations for LLM-powered OSINT.

Fernanda Schmidt12 apr 202613 minRead →
AI

Multimodal OSINT: Analyzing Video/Audio with LLMs

Video analysis, audio transcription, sentiment detection, and speaker identification using Claude, GPT-4V, and Gemini 2.0.

Fernanda Schmidt12 apr 202612 minRead →
AI

Deepfake Detection for OSINT

Deepfake detection tools, facial analysis, forensics, and real-world case studies of synthetic media in investigations.

Fernanda Schmidt12 apr 202611 minRead →
AI

How to Detect AI-Generated Disinformation

Linguistic markers, statistical anomalies, origin forensics, and training datasets to identify AI-generated text, images, video.

Fernanda Schmidt12 apr 202612 minRead →
AI

OSINT in the Age of Google AI Overviews

Google's AI Overviews, citability strategy, snippet optimization, and how OSINT adapts to LLM-driven search.

Fernanda Schmidt12 apr 202612 minRead →
AI

Using Perplexity for Deep OSINT Research

Perplexity AI for investigative synthesis, source prioritization, real-time research, and integrating with manual OSINT.

Fernanda Schmidt12 apr 202611 minRead →
AI

How to Verify AI-Generated OSINT Data

LLM hallucination risk, source traceability, red-teaming, and the "Trust but Verify" framework for AI investigative output.

Fernanda Schmidt12 apr 202612 minRead →
Automation

Automated OSINT: Scaling Your Investigations

Cost modeling, parallel processing, API automation, jurisdictional compliance, and fintech case study of OSINT automation.

Fernanda Schmidt12 apr 202614 minRead →
Architecture

Scaling OSINT with Distributed AI Agents

Agent orchestration, vector databases, LLM workflows, and infrastructure cost analysis for distributed OSINT systems.

Fernanda Schmidt12 apr 202613 minRead →
Architecture

Structuring OSINT Data for LLM Processing

Schema design, normalization, deduplication, and JSON pipelines to prepare OSINT data for LLM ingestion and analysis.

Fernanda Schmidt12 apr 202613 minRead →
Automation

Automating Intelligence Reports with LLMs

Report template design, JSON extraction, two-step automation, and Python pseudocode for LLM-powered report generation.

Fernanda Schmidt12 apr 202612 minRead →
Platform

Integrating Espectro API with Custom AI Agents

API integration, tools-first architecture, LangChain patterns, and practical domain investigator agent example.

Fernanda Schmidt12 apr 202613 minRead →
Ethics

AI Ethics in OSINT Investigations

Ethical frameworks, privacy, bias detection, accountability, and regulatory compliance for AI-powered open source intelligence.

Fernanda Schmidt12 apr 202612 minRead →
Tools

Top 5 Free OSINT Tools for Beginners in 2026

Maltego CE, Shodan, theHarvester, Sherlock, and WHOIS—the essential free tools for starting your OSINT journey.

Fernanda Schmidt12 apr 202611 minRead →
Guide

How to Learn OSINT from Scratch (2026)

Learning path, skill progression, Docker isolation, Python scripting, and data normalization pipeline from zero to competency.

Fernanda Schmidt12 apr 202614 minRead →
Fundamentals

What is an OSINT Investigation? Technical Methodology

OSINT investigation lifecycle, methodology phases, technical workflow, and case study of investigative process from start to closure.

Fernanda Schmidt12 apr 202613 minRead →
Training

Synthetic Data in Investigative Training

Using synthetic datasets to train OSINT investigators without real personal data, privacy-first learning, and simulation frameworks.

Fernanda Schmidt12 apr 202612 minRead →