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OSINT &
Breach Intel.

Threat research, breach analysis, and practical OSINT guides: email lookup, username search, data breach checking, and infostealer intelligence, from the Revealer.US team.

All Articles

84 posts · page 7/10
55

How AI Deep Search Works: From One Identifier to a Sourced Report

How AI Deep Search works: one email, username, or phone number expands into a sourced report of linked accounts, breach matches, and confidence scores.

Jun 13, 2026
56

Reverse Phone Lookup: How to Identify an Unknown or Spam Caller

A plain guide to reverse phone lookup: how to identify an unknown or spam caller, check who called you, and spot scam texts.

May 28, 2026
57

Free People Search: How Identifier Lookups Work

How a free people search works: how a name, username, email, or phone number links public records, plus how to check your own exposure and the legal limits.

May 25, 2026
58

How to Run a Background Check: Public Records Research and Its Legal Limits

How to run a background check with public records, social profiles, and breach data, what OSINT research can and cannot show, and the FCRA limits to respect.

May 24, 2026
59

The Complete Guide to Data Breach Response in 2025

A practical breach response playbook: the NIST incident response lifecycle, EU 72-hour notification clocks, and post-incident recovery.

Jan 12, 2025
60

Passkeys vs Passwords: How WebAuthn Actually Works

Passkeys and WebAuthn promise passwordless authentication that resists phishing. This piece covers the cryptography on the wire, and the places it does not save you.

Jan 10, 2025
61

Case Study: Detecting a Supply Chain Attack in 48 Hours

How a mid-market fintech used stealer-log alerts to catch a vendor supply chain attack within 48 hours of stolen credentials surfacing.

Jan 8, 2025
62

The State of Identity Security in 2025: Trends and Predictions

Identity security in 2025: passkeys, ITDR, non-human identities, and AI-driven attacks. Seven trends and a practical roadmap.

Jan 6, 2025
63

Implementing Zero Trust Architecture: Lessons from Real Deployments

Practical zero trust architecture lessons from real deployments, covering NIST 800-207, phased rollout, and common ZTA failure modes.

Jan 4, 2025