Security Websites

CVE Database

• https://www.cve.org/ (Formerly: https://cve.mitre.org)
  
• https://nvd.nist.gov/ (CVSS Database)
  
• https://www.cvedetails.com/
• https://access.redhat.com/security/security-updates/#/cve
• https://www.kb.cert.org/vuls/ (CERT/CC Vulnerability Notes Database)

Vendor

• RedHat: https://access.redhat.com/security
• iThome: https://www.ithome.com.tw/security
• HPE: https://support.hpe.com/hpesc/public/docDisplay?docId=sd00001284en_us
• IBM: https://www.ibm.com/trust/security-psirt
• vmware: https://www.vmware.com/security/advisories.html
• Cisco: https://sec.cloudapps.cisco.com/security/center/publicationListing.x 
• HCL Notes: https://support.hcltechsw.com/csm?id=community_topic&sys_id=d1514ac91be8cc5c83cb86e9cd4bcba8  
• Ubuntu: https://ubuntu.com/security/cves 
• Debian: https://security-tracker.debian.org/tracker/ 
• Microsoft: https://msrc.microsoft.com/update-guide/vulnerability 
• Apple: https://support.apple.com/en-us/HT201222 
• Google Cloud: https://cloud.google.com/support/bulletins 

Government

• 台灣電腦網路危機處理暨協調中心 TWCERT/CC
• 台灣漏洞揭露平台 (TVN)
• 惡意檔案檢測服務 Virus Check
• 國家資通安全通報應變網站
• 台灣證交所公開資訊觀測站(一)
• 台灣證交所公開資訊觀測站(二)
• 資通安全署 Administration for Cyber Security, moda
• US. CISA
• US. NIST National Vulnerability Database

Security Organization

• BleepingComputer

No More Ransom Cyberattacks & Data Breaches recent news | Dark Reading CSO Online Krebs on Security

Security Online Tools

• URL and website scanner - urlscan.io
• VirusTotal - Home
• AbuseIPDB - IP address abuse reports - Making the Internet safer, one IP at a time
• Cisco Talos Intelligence Group - Comprehensive Threat Intelligence
• IBM X-Force Exchange
• Palo Alto Networks URL filtering - Test A Site
• Symantec Sitereview
• IP Address Tools, Network Tools, DNS Tools | IPVoid
• Check if a Website is Malicious/Scam or Safe/Legit | URLVoid
• Web Check