Using DNS History in Cybersecurity

Explains DNS history—how logs of past DNS changes reveal domain migrations, security trends and competitive insights—plus record types to inspect and tools like SecurityTrails and DNS Spy for retrieving it.

Explains open source intelligence: definition and sources, why OSINT is often misunderstood, its role in cybersecurity and threat detection, common tools, legal notes and market growth.

Look-alike domains fuel phishing and brand abuse; NetSPI Domain Monitoring discovers and scores them using WHOIS, DNS, and certificate context to speed action against high-risk domains.

NetSPI describes scraping employee contacts from zoominfo.com for OSINT use, and releases a script that converts gathered names into emails and usernames for phishing and password spraying engagements.

Examines security issues in federated Skype for Business, showing how external domains can validate email addresses, read availability and out-of-office status, and deliver phishing messages.

Introduces the linkedin_crawl recon-ng module that spiders the People also Viewed pane on LinkedIn to harvest employee names and titles for phishing lists and password attacks.