Parked Domains: Assess the Risk Before Blocking
Distinguish domain parking, expiration, and malicious behavior. Examine actual use and choose a restriction supported by the evidence.
How to Analyze Suspicious Email Headers
Identify trusted servers, interpret Authentication-Results, and investigate a suspicious email without confusing authentication with safe content.
Suspicious URL? Check Redirects Without Opening It
Inspect a suspicious link, find previously observed redirects and protect private tokens before deciding whether to run an isolated scan.
MFA Fatigue: Stop Push-Bombing Attacks
Detect and prevent MFA fatigue with number matching, rate limits, risk signals, phishing-resistant authentication, and an identity incident playbook.
HTML Smuggling: Detection and Incident Response
Detect HTML smuggling by correlating browser file creation, JavaScript Blob behavior, download telemetry, endpoint execution, and threat intelligence.
Browser-in-the-Browser Phishing: Detection Guide
Understand browser-in-the-browser phishing, spot fake SSO windows, detect campaign infrastructure, and reduce risk with phishing-resistant authentication.
Bulletproof Hosting: Map Criminal Infrastructure
Identify bulletproof hosting through ASN, prefix, domain, abuse, migration, and campaign signals without treating an entire network as malicious.
Domain Shadowing: Detect Compromised DNS at Scale
Detect domain shadowing by monitoring DNS changes, certificate issuance, subdomain behavior, account security, and infrastructure relationships.
Certificate Transparency for Phishing Detection
Use Certificate Transparency logs to find rogue certificates, phishing subdomains, brand impersonation, and exposed assets before they become incidents.
How to Use an NRD Feed to Catch Phishing Before It Lands in the Inbox
Newly registered domains are where most phishing campaigns start. This guide walks through NRD feed workflows for brand monitoring, mail gateway hygiene, and SOC triage — without treating domain age as a blunt block rule.
Reverse IP Lookup: Pivoting on Infrastructure Without Drowning in Shared Hosting
A reverse IP lookup turns one indicator into a cluster — or into a thousand innocent neighbours. Here is how to tell the difference, and how to pivot on hosting infrastructure without generating false positives.
WHOIS Lookup for Security Investigations: Reading a Record After Redaction
Privacy services stripped the registrant name out of most WHOIS records, but the fields that matter for triage survived. Here is what a WHOIS record still tells an analyst, and how to read it.
The Kratos Phishing Kit Takedown: 200 Servers Gone, 1,800 Copies Still Out There
German and US law enforcement dismantled Kratos, the AiTM phishing service behind roughly 15,000 Microsoft 365 campaigns a month. The infrastructure is offline, but the kit is not. Here is what to hunt for now.
urlscan.io vs isMalicious: URL Scanning
urlscan.io captures what a page does; isMalicious tells you if it is malicious. Verdicts, redirect chains, and blocklists compared.
Security LLM and Agent Workflows: When (and How) to Check Malicious Domains, IPs, and URLs Before Acting
AI assistants in SOAR, IDEs, and browser extensions can exfiltrate data or run malicious code if they fetch the wrong link. This guide gives guardrails: schema for tool calls, policy tiers, and where threat intelligence checks belong in the loop.
Malicious Infrastructure Clustering: How Passive DNS, TLS Certificates, and ASNs Reveal Shared Campaigns
A single C2 IP is a clue; shared signing patterns and DNS co-occurrence are a map. This guide explains how defenders cluster infrastructure without chasing ghosts—and how to document findings for IR, threat intel, and law enforcement handoffs.
Brand Impersonation and Lookalike Domains: A Practical Monitoring Playbook for Security, Legal, and Fraud Teams
Typosquats and homoglyphs are cheap to register and expensive to ignore. Learn how to discover, prioritize, and remove lookalike infrastructure before it harvests credentials or poisons your customers’ trust in search and email.
Spear Phishing and Social Engineering: The Top Attack Vectors Targeting Enterprises in 2026
A complete guide to modern spear phishing and social engineering attack vectors—how threat actors plan, lure, and pivot, with detailed defensive controls for email, identity, training, and infrastructure reputation.