OSINT: Your Company Is Naked on the Internet and You Don't Even Know

## What an Attacker Sees vs. What You Think They See

Most business owners believe "security" means having an antivirus and a firewall. The reality is very different. Using only free, public tools — without hacking anything — an OSINT (Open Source Intelligence) professional can map your entire attack surface.

### What We Find in Real Audits (Methodology, Without Exposing Clients)

1. **WHOIS & Historical DNS**: Domain registration reveals the owner's full name, personal email, phone number, and even home address (when WHOIS Privacy isn't active).
2. **Forgotten Subdomains**: Companies frequently have admin panels exposed at `admin.company.com`, `staging.company.com`, or `dev.company.com` — without authentication.
3. **Credentials in Leaked Databases**: Services like Have I Been Pwned reveal whether corporate emails have been compromised in previous breaches.
4. **Technologies Exposed in HTTP Headers**: Wappalyzer and simple header analysis reveal server versions (Apache, Nginx), frameworks (Laravel, WordPress), and even databases.
5. **Document Metadata**: PDFs, spreadsheets, and documents on the site may contain metadata with internal usernames, directories, and software versions.

### How to Reduce Your Digital Footprint

- **WHOIS Privacy** mandatory on all domains.
- **Subdomain audits** quarterly (tools: Amass, Subfinder).
- **Breach monitoring** with Threat Intelligence services.
- **Metadata removal** before publishing any document.
- **Sanitized HTTP headers**: Never expose software versions in production.

> **RET Tecnologia executes complete OSINT audits as the first phase of every security project. If you don't know what the world sees about your company, you're already vulnerable.**