| Source | Category | Tier | Status |
|---|---|---|---|
| 404 Media | news | 1 | ● Active |
| AWS Security | cloud-ai | 1 | ● Active |
| Apple Security | vulnerabilities | 1 | ● Active |
| Aqua Nautilus | cloud-ai | 1 | ● Active |
| Ars Technica | news | 1 | ● Active |
| Atlassian Trust | vulnerabilities | 2 | ● Active |
| BlackBerry Research | research | 2 | ● Active |
| Bleeping Computer | news | 1 | ● Active |
| CCCS Canada | government | 1 | ● Active |
| CERT-Bund (DE) Advisories | government | 2 | ● Active |
| CERT-EU Threat Intel | government | 1 | ● Active |
| CERT-FR | government | 1 | ● Error |
| CISA Alerts | government | 1 | ● Active |
| CISA All Advisories | government | 1 | ● Active |
| CISA ICS Advisories | government | 1 | ● Active |
| CISA KEV Catalog | vulnerabilities | 1 | ● Active |
| CISA US-CERT Alerts | nation-state | 1 | ● Active |
| CSO Online | news | 1 | ● Active |
| Check Point Research | research | 1 | ● Active |
| Chrome Releases | vulnerabilities | 1 | ● Active |
| Cisco Security Advisories | vulnerabilities | 1 | ● Active |
| Cisco Talos | research | 1 | ● Active |
| Citrix Security Bulletins | vulnerabilities | 1 | ● Active |
| Cloudflare Blog | research | 2 | ● Active |
| CrowdStrike | research | 1 | ● Active |
| CyberScoop | news | 1 | ● Active |
| Dark Reading | news | 1 | ● Active |
| DataBreaches.net | breaches | 1 | ● Error |
| Datadog Security Labs | cloud-ai | 2 | ● Active |
| Debian Security | vulnerabilities | 2 | ● Active |
| ESET WeLiveSecurity | research | 1 | ● Active |
| Elastic Security Labs | research | 2 | ● Active |
| Embrace The Red | cloud-ai | 1 | ● Active |
| Exploit-DB | vulnerabilities | 1 | ● Error |
| FBI IC3 PSAs | policy | 1 | ● Active |
| FBI National Press Releases | government | 2 | ● Active |
| FTC Press Releases | policy | 1 | ● Active |
| Fortinet FortiGuard | research | 1 | ● Error |
| Full Disclosure | vulnerabilities | 1 | ● Active |
| GitGuardian | supply-chain | 1 | ● Active |
| GitHub Security Lab | supply-chain | 1 | ● Active |
| Google Cloud Security | cloud-ai | 2 | ● Active |
| Google Online Security | supply-chain | 1 | ● Active |
| Google Project Zero | research | 1 | ● Active |
| Google TAG | research | 1 | ● Error |
| Graham Cluley | news | 2 | ● Active |
| GreyNoise | research | 2 | ● Active |
| Group-IB | research | 2 | ● Active |
| HHS OCR Breach Portal | policy | 2 | ● Error |
| Have I Been Pwned | ransomware | 1 | ● Active |
| Help Net Security | news | 2 | ● Error |
| Huntress | research | 2 | ● Active |
| IBM Security Intelligence | research | 1 | ● Active |
| Industrial Cyber | ics-ot | 2 | ● Active |
| Infosecurity Magazine | news | 2 | ● Active |
| Intel 471 | research | 2 | ● Active |
| JPCERT/CC | government | 1 | ● Active |
| Krebs on Security | news | 1 | ● Active |
| MS-ISAC | government | 1 | ● Active |
| MSRC Blog | vulnerabilities | 1 | ● Active |
| Malwarebytes Labs | research | 1 | ● Active |
| Mandiant / Google TI | research | 1 | ● Active |
| Microsoft Security | research | 1 | ● Active |
| Mozilla Security Blog | vulnerabilities | 1 | ● Active |
| NCC Group Research | research | 2 | ● Error |
| NCSC Netherlands | government | 2 | ● Active |
| NCSC UK | government | 1 | ● Active |
| NIST Cybersecurity | policy | 1 | ● Active |
| NVD Recent CVEs | government | 1 | ● Active |
| OpenSSF | supply-chain | 1 | ● Active |
| Palo Alto Security Advisories | vulnerabilities | 1 | ● Error |
| Palo Alto Unit 42 | research | 1 | ● Active |
| PortSwigger Research | research | 1 | ● Active |
| Proofpoint | research | 1 | ● Error |
| Qualys | research | 2 | ● Active |
| Ransomware.live | ransomware | 1 | ● Error |
| Rapid7 | research | 2 | ● Active |
| Recorded Future Blog | research | 1 | ● Active |
| Red Canary | research | 2 | ● Active |
| Red Hat Security | vulnerabilities | 2 | ● Active |
| ReversingLabs | supply-chain | 2 | ● Active |
| Risky Biz News | news | 1 | ● Active |
| SANS ISC Diary | news | 1 | ● Active |
| SAP Security | vulnerabilities | 2 | ● Active |
| SC Media | news | 2 | ● Error |
| SEC Press Releases | policy | 1 | ● Active |
| Schneier on Security | news | 1 | ● Active |
| Securelist (Kaspersky) | research | 1 | ● Error |
| Secureworks CTU | research | 2 | ● Active |
| Security Affairs | news | 2 | ● Active |
| SecurityWeek | news | 1 | ● Active |
| SentinelOne Labs | research | 1 | ● Active |
| Siemens ProductCERT | ics-ot | 1 | ● Active |
| Simon Willison | cloud-ai | 1 | ● Active |
| Sonatype | supply-chain | 2 | ● Active |
| Sophos News | research | 1 | ● Active |
| Sysdig | cloud-ai | 2 | ● Active |
| Tenable | research | 2 | ● Active |
| The Hacker News | news | 1 | ● Active |
| The Record | news | 1 | ● Active |
| The Register Security | news | 1 | ● Error |
| Trail of Bits | research | 1 | ● Error |
| Trend Micro Research | research | 1 | ● Active |
| Troy Hunt | news | 2 | ● Active |
| Ubuntu Security Notices | vulnerabilities | 2 | ● Error |
| Volexity | research | 1 | ● Error |
| VulDB | vulnerabilities | 2 | ● Error |
| Wired Security | news | 1 | ● Active |
| ZDI (Trend Micro) | research | 1 | ● Active |
| Zero Day (Kim Zetter) | news | 1 | ● Active |
| oss-security | vulnerabilities | 1 | ● Active |
| r/blueteamsec | community | 1 | ● Error |
| r/netsec | community | 1 | ● Error |
| r/threatintel | community | 1 | ● Error |
| tl;dr sec | news | 1 | ● Error |