ThreatFilter — Security News

BleepingComputer
Cisco Talos Intelligence
Dark Reading
ESET WeLiveSecurity
Google Threat Analysis Group
GreyNoise Labs
Group-IB Blog
Krebs on Security
Malwarebytes Labs
Mandiant Blog
Palo Alto Unit 42
SANS Internet Storm Center
Schneier on Security
Securelist (Kaspersky)
SecurityWeek
Sophos News — Threat Research
The Hacker News
The Record by Recorded Future
Trend Micro Research