🛡️ Open Source Cyber Resource
The Cyber Practitioner's Handbook
Your centralized hub for threat intelligence, detection engineering, incident response, and security operations. Built by practitioners, for practitioners.
LIVE THREATS
🔴 CVE-2025-0282 Ivanti RCE - Active Exploitation
🟠 APT29 Campaign Targeting EU Diplomats
🔴 BlackSuit Ransomware - Healthcare Sector
🟠 npm Supply Chain Attack - Lazarus Group
🟡 Cloudflare Workers Phishing Bypass
🔴 FortiOS Zero-Day - Patch Now
100+
Security Topics
Live
Threat Feeds
28
Free Tools
226
Detection Rules
Quick AccessJump to what matters
LIVEIntelligence Feeds
🛡️ Daily Threat BriefLIVE
View all →
Loading...
📰 Cyber NewsFEED
View all →
Loading...
LIVEGlobal Threat Activity
FeaturedPopular Resources
MITRE ATT&CK Mapping
14 tactics, 200+ techniques mapped to SIEM detections
14 Tactics200+ Rules
IR Playbooks
Battle-tested incident response procedures
12 PlaybooksNIST Aligned
Hunting Hypotheses
Data-driven threat hunting starting points
25+ HypothesesKQL Ready
APT Profiles
Detailed threat actor intelligence & TTPs
50+ GroupsIOCs
CVE Database
Critical vulnerabilities with exploit status
Live FeedCVSS Scores
Compliance Frameworks
ISO 27001, NIST CSF, PCI-DSS mappings
6 Frameworks430 Controls