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Security News and Advisories
Where to hear about a vulnerability before a client asks you whether they are affected.
ShodanSearch engine for internet-facing devices and services.Analysis
SANS InstituteTraining and certification, plus an excellent free reading room.Learning
SANS Internet Storm CenterDaily handler diaries on what is actually being exploited.Advisories
Krebs on SecurityInvestigative reporting on breaches and cybercrime.News
The Hacker NewsFast coverage of actively exploited vulnerabilities.News
Bleeping ComputerPractical reporting on malware and enterprise incidents.News
Dark ReadingEnterprise security news and analysis.News
PortSwigger Web Security AcademyFree, hands-on labs covering every major web vulnerability class.Learning
Burp SuiteThe interception proxy most web testing is done through.Tools
Hack The BoxMachines and challenges for practising offensive skills legally.Practice
TryHackMeGuided rooms that are the friendliest entry point into the field.Practice
PicoCTFBeginner-friendly capture-the-flag competition from Carnegie Mellon.Practice
CTFtimeCalendar and rankings for capture-the-flag events worldwide.Practice
WiresharkThe packet analyser you will reach for when traffic looks wrong.Tools
Kali LinuxThe standard distribution for offensive security tooling.Tools