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Professional Practices in Information Technology CSC 110 ProfessionalPracticesi n Information Technology HandBook COMSATS Institute of Information Technology (Virtual Campus) Islamabad, Pakistan Professional Practices in Information Technology CSC 110 Lecture 17 Introduction to Hacking 17.1 What Is Network Security? Security is much larger than just packets, firewalls, and hackers. Security includes: – Policies and procedures – Liabilities and laws – Human behavior patterns – Corporate security programs and implementation – Technical aspects- firewalls, intrusion detection systems, proxies, encryption, antivirus software, hacks, cracks, and attacks Understanding hacking tools and how attacks are carried out is only one piece of the puzzle. 17.2 Hacking The process of attempting to gain or successfully gaining, unauthorized access to computer resources for the purpose of help or secure system is called hacking.  History of Hacking – 1966 – Robert Morris introduces the concept of safe hacking. – 1969 – Development in the field of hacking. – 1990 – Electronic frontier foundation was founded. – 1995 – Mark Andreessen & Eric release mosaic  Who is Hacker? Hacker is not cyber-criminal but he is the very intelligent person who uses his knowledge in Professional Practices in Information Technology CSC 110 constructive manner to secure system & never damage data. He knows all about the operating system & different holes in the system .  Who is cracker? – Person who enter into other’s system and violet the system, damage the data, create havoc is called cracker – Cracker is cyber criminal – They can be easily identified because their actions are malicious  Why do crackers exist? – Crackers exist because human nature is just so, frequently driven by to destroy instead of create – They are used for different purposes like for profit, some company use them for disabling the competitor company, for cracking credit card number  Difference between hacker & cracker – Hacker’s programs to check integrity of other programs, thus when hackers create program it automatically checks remote machine security structure – They always do constructive work – Crackers rarely make their own program instead, they steal tool, programs from others – Crackers creates nothing & destroy much  Which operating system hacker use – Sun – Unix – Microsoft Sun – Hackers use either solaric x86 or sco as a platform. – This is because these products are licensed ware & they can easily be obtained. Professional Practices in Information Technology Unix – Popular platform because they required a low overhead – We can run linux on a paltray 386 and gain good performance. – This is reasonable. Microsoft – This supports many security tools that can be used to attack remote machine. – It has advanced tools for networking as well. CSC 110