STIX: Indicator vs Observed Data
Separate a detection pattern, an observed fact, and a STIX Sighting so your IOC pipeline does not turn every recorded event into a threat.
Defang and Refang: Handle hxxp and IOCs Correctly
Share defanged IOCs while retaining usable evidence: separate display, conversion, validation and submission to external services.
URL Normalization: Avoid Incorrect IOC Matches
Compare URLs while preserving evidence: case, encoding, parameters and fragments need explicit rules and tests for values that must stay distinct.
IOC Expiration: When to Remove an IP From a Blocklist
Manage IOC expiration with separate DNS, evidence and STIX validity clocks. Review stale IP blocks, process withdrawals and preserve the audit trail.
Investigate an IOC Alert: Link IP, DNS and Process Logs
An IOC match is an investigation lead. Correlate DNS, network connections and process records to establish what happened on the endpoint.
Threat Intelligence Platforms: Architecture, Data Quality, and High-Signal Feeds
Design TIPs and intel pipelines that scale: normalization, confidence scoring, deduplication, API-first delivery, and how to pair platform investments with analyst workflows.
Building IOC Pipelines: From Raw Indicators to Operational Threat Intelligence in 2026
A practical engineering guide to building indicator of compromise (IOC) pipelines—ingestion, normalization, deduplication, enrichment, scoring, distribution, and feedback—to turn raw threat feeds into operational defense.
Operational Threat Intelligence: Turning IOCs into Prioritized Security Actions
Define operational CTI that SOC teams can use daily: IOC lifecycle, confidence scoring, feed hygiene, and how to align indicators with detection engineering and incident response.
File Hash Check: Is This SHA-256 Malware?
How to check MD5, SHA-1, and SHA-256 hashes against threat intelligence, and how SOC teams use hash reputation to cut false positives.
File Hash Analysis: MD5, SHA-1, and SHA-256 for Malware Detection and Threat Hunting
A practical guide to file hashes in cybersecurity—how MD5, SHA-1, and SHA-256 work, why they matter for malware detection, incident response, and threat hunting, and how to use hash lookups to enrich indicators of compromise.