• Passive Reconnaissance Overview

• Identifying Our Target
• Discovering Email Addresses

Hunter is your all-in-one email outreach platform. Find and connect with 
the people that matter to your business.

<https://hunter.io/>

Phonebook lists all domains, email addresses, or URLs for the given input domain.

<https://phonebook.cz/>

I can find anyone's email address

<https://www.voilanorbert.com/>

Free email address verification tool

<https://tools.emailhippo.com/>

A simple tool to check whether an email address exists.

<https://email-checker.net/>

• Gathering Breached Credentials with Breach-Parse
• Hunting Breached Credentials with DeHashed

Take your data security to the next level

<https://dehashed.com/>

Decrypt MD5, SHA1, MySQL, NTLM, SHA256, MD5 Email, SHA256 Email, SHA512 hashes

<https://hashes.com/en/decrypt/hash>

• Hunting Subdomains Part 1

 apt install sublist3r

<https://crt.sh/>

• Identifying Website Technologies