Common Terminologies used in Internet Security

Submitted by Srikanth on Thursday, 27 November 20088 Comments

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If you are a newbie in Internet security, you have come to the right place. The following is information on some common terms used in Internet security. So next time you don’t have to scratch your head when someone uses these.

Firewall – is a system that acts as a barrier between your computer network and the Internet. A firewall controls the flow of information according to security policies.

Hacker – can be anyone specializing in accessing computer based systems for illegal purposes or just for the fun of it.

IP spoofing – is an attempt to access your system by pretending like another system. This is done by setting up a system with an IP address that you normally trust.

Sniffing – is the spying on electronic transmissions to access data. This mostly occurs in privately owned LAN networks connected to the web.

Trojan horse – a program pretending like useful software, while its actual strategy is to access, steal or destroy user data and access authorization. Apart from destroying information, trojans can also create a backdoor on your system for stealing confidential information.

Virus – is a program that attaches itself to a program or file. This allows it to spread across networks and cause damage to software and hardware. To operate, viruses require the execution of the attached file.

Worm - A worm is almost similar to a virus, except that it doesn’t need the execution of any executable file to get activated. It can also replicate itself as it travels across networks.

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8 Comments »

Himanshu said:

heyy shrikant,
movies like die-hard 4,the net,swordfish…many more tells story of hackers which hack the computers of well known agencies like FBI,NSA,NASA…e.t.c,so is it possible that hacking at such a huge scale and of such an intensity can ever take place????? if not then why the producers waste their money on any such kind of hypothetical situations.

- 17 December 2008 at 1:13 am

Srikanth (author) said:

@ Himanshu

The truth is nothing is impossible.But the way it is shown in the movies are utter nonsense.Hacking is not at all easy as it is shown in these movies.The movie is just meant to give entertainment and thrill to the audience…..

- 17 December 2008 at 12:16 pm

some doode said:

Whatz an ip adress?

- 17 January 2009 at 9:13 pm

shadowww said:

Can u tell me which book I should really prefer to learn hacking?
And pls tell me its cost and the edition of it Or if a newer edition of that book is available or not !!!!!
Pls Reply !

- 8 March 2009 at 10:06 pm

Srikanth (author) said:

@ shadowww

It all depends upon the current level of your knowledge. Plz tell me whether you are a newbie or have a strong basics of hacking.

- 8 March 2009 at 11:25 pm

Geeth said:

Hey Dude Can you please help me to learn hacking i know programming languages like c/c++ and i have a basic knowledge of computer security where can i start to learn i mean a source which book is good to start and another thing I dont have a Credit card to buy stuff please reply….

- 3 April 2009 at 5:55 pm

karan said: