Table of contents

Slide 1

Secure programs

Secure programs2

General Definition

Number 2

Early Security auditing

Patch problems

Better Approach

cause of flaws

danger

Why do they exist?

Common human errors

Incomplete mediation (Y2K)

TIme-of-Check

Viruses

What can a virus do

Kinds

Trojan Horse

Trojan items

Logic Bombs

Trapdoors

Worm

Rabbits