What are public threat reporting channels?

Phishing reporting: PhishTank (crowdsourced phishing URL database), Google Safe Browsing (via Chrome reporting), and provider-specific channels (Gmail, Microsoft). Reports contribute to shared intelligence.

Malware reporting: VirusTotal (file and URL scanning), abuse.ch (malware tracking), and security vendor submission channels. Sharing samples enables signature development.

Incident reporting: FBI IC3 (cybercrime reporting), CISA (critical infrastructure), and regional CERTs. Law enforcement and government channels enable broader response.