academy.security.krd

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Security Foundations

Beginner · 8w

Networks, operating systems, cryptography and threat modelling from first principles. No prior security knowledge assumed, and no English requirement beyond reading tool output.

#lessonsmin
01 Networks, and where they assume trust 25
02 Users, permissions, and why root is a design decision 22
03 Cryptography without the mathematics 24
04 Identity, and the failure behind most breaches 25
05 Threat modelling: deciding what you are actually defending 25
06 The logs you already have, and the ones you will wish you kept 30