Since, you didnot mentioned which messenger you wanted to know about I am gonna publish hacking tricks about MSN.

Firstly their are many Ways to hack MSN: such as

1 Brute force method 2 Username method(The Best way) 3 Proxy method (The old way) 4 Source code method

1 Brute force method

a. Use telnet to connect to port 110 (Hotmail´s pop-server)

b. Type USER and then the victim´s username

c. Type PASS and then the guess a password

d. Repeat that until you have found the correct password.

Note: This is called brute force hacking and requires patience.It´s better than trying to guess the victims password on hotmail homepage only because it´s faster.

2 Username method(The Best way)

a. Get the username of the victim (It usually stands in the adress-field)

b. Then type " www.hotmail.com/cgi-bin/start/victimsusername "

c. you´re in!

Note: This hack only works if you are on the same network or computer as the victim and if he doesn´t log out.

3 Proxy method (The old way)

a. Go to http://www.hotmail/proxy.html

b. Now type the victims username. (press login)

c. Look at the source code.

d. On the fifth row You should find "action=someadress"

e. Copy that address and paste it into the address-field

f. You are in...

Note: As you can see it´s a long procedure and the victim has plenty of time to log out.

4 Source code method

a. Go to hotmail´s homepage

b. Copy the source code.

c. Make a new html file with the same code but change method=post to method=enter

d. "view" the page

e. Change the adress to www.hotmail.com/ (don ´t press enter!)

f. Make the victim type in his username and password

g. look in the adress-field. There you´ll see ...&password:something...

Note: This is the way I use, because it lets youknow the password.

(If he exits the browser you can see the password in the History folder!)

You should read before using the method

Hotmail´s sysops have changed the "system" so that the victim may log out even if you are inside his/her account. So don´t waste your time!If you are a beginner, I wouldn't make this your first attempt at hacking. When you need to do is use a port surfer and surf over to port 80. While there, you have to try and mail the user that you want the password from. It is best to mail them using the words "We" and "Here at Hotmail..." Most suckers fall for this and end up giving out their password. There is another way to also, you can get an anon mailer, and forge the addres as staff@hotmail.com.

But you have to change the reply address to go to a different addres like user@host.com. The person that you are trying to get the pass from MUST respond to that letter for the mail to be forwarded to you.Have text like "Please reply to this letter with the subject "PASSWORD" and underneath please include your user name and password. If you have trouble logging in withing the next few days, this is only because we are updating our mail servers but no need to worry, your mail will still be there. Even though the server may be down for an hour.

Disclaimer hacking is illegal and can result in imprisonment so if you want to do so, then do it at your own risk.

Your best bet is to just pretend you are sleeping when next to the target desired. Make sure you log them off of the account..sit back and discreetly peek at the password.