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What is Defanging?
Defanging makes malicious URLs, IPs, and emails safe to share by replacing active characters with bracketed versions, preventing accidental clicks and execution. Essential for threat intelligence sharing and security reporting.
→ hxxps://evil[.]com
→ http[:]//evil[.]com
→ h**ps[PROTOCOL]evil[DOT]com
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References & Citations
- MITRE. (2021). CybOX: Cyber Observable Expression Standard. Retrieved from https://cyboxproject.github.io/ (accessed January 2025)
- OASIS Open. (2021). STIX 2.1 Specification. Retrieved from https://docs.oasis-open.org/cti/stix/v2.1/stix-v2.1.html (accessed January 2025)
- Wordfence. (2017). Homograph Attack Examples and Prevention. Retrieved from https://www.wordfence.com/learn/homograph-attack/ (accessed January 2025)
- CISA. (2023). Best Practices for Sharing Threat Intelligence. Retrieved from https://www.cisa.gov/topics/cyber-threats-and-advisories (accessed January 2025)
Note: These citations are provided for informational and educational purposes. Always verify information with the original sources and consult with qualified professionals for specific advice related to your situation.
Key Security Terms
Understand the essential concepts behind this tool
⚠️ Security Notice
This tool is provided for educational and authorized security testing purposes only. Always ensure you have proper authorization before testing any systems or networks you do not own. Unauthorized access or security testing may be illegal in your jurisdiction. All processing happens client-side in your browser - no data is sent to our servers.