Protect Your Passwords from HACKERS!!
1. The first and most important thing to keep in mind is to not open any attachments while receiving any mails from unknown people. Even non-executable files like .Doc files CAN contain macro viruses and Trojans.
 
2. In the security world, they say "On the internet , you don't know if you are talking to a dog!!" The meaning of this saying is that just don't trust anybody on the internet whom you don't know. Don't chat with strangers just for fun. Don't click on any links given to you by someone you don't know. Don't disclose any kind of personal details to any webpages which you don't trust. There have been cases of people using fake yahoo login screens to steal passwords.
 
3. Install antivirus software along with anti-spyware to protect your computer system. If possible also install a desktop firewall (eg.Zonealarm). Always remember to keep updating your virus definitions as well as operating system for any available patches.
 
4. Do not accept links or downloads from strangers even if it is tempting. There have cases where spywares like Trojans, keyloggers etc. have been hidden in simple picture files with JPG extensions. You never really know what is contained inside a file which looks innocuous.
 
5. Choose good passwords. What is a good password? It is a password which is at least 6 characters long, not easily guessable, contains mixture of uppercase and lowercase letters as well as numbers, and preferably contains special characters like   $, * %,!,* etc.  Some example password : &*Ucan't*Crack(&

How hackers hack & crack  Yahoo passwords ?
 
1: Many people use MAGIC PASSWORD STEALER (MPS) Trojan to hack yahoo passwords. A lot, and I mean a lot of people are infected with Magic PS. Especially with Magic PS 1.5 Second Edition. If you don't know what is Magic PS. Magic PS is a trojan, simply a program that steal your Yahoo! Messenger 5 or 6 user name and password to the sender. Magic PS 1.5 SE no longer show itself in the Message Archive, so checking there won't help.
 
If the sender is stupid enough, he/she would sent you the file "sender.exe", DO NOT accept it because it is the default name for a MPS created file.
 
Check your computer for certain files such as these:
 
regsvr.exe in c:\Winnt or c:\Windows ; depends on version of Windows
 
MsAgent32.exe in c:\*Win installed folder*\system 32
 
Perflib-Perfdata in c:\*Win installed folder*\System32
 
PIF in c:\*Win installed folder*
NTMSJRLN in c:\*Win installed folder*\system32\NtmsData
 
Sender.exe
 
MPSmmtask0.exe in c:\Documents settings\*User Name*\Local settings\Temp
 
The sender.exe (can be any name) file may also contain a text string "UPX-Scrambler RC1.x -> ©OnT®oL". You can see this by using a hex editor, etc.
 
MPS 1.5 SE hides the (sender/hacker) Yahoo! ID in the sender.exe file, it is scrambled so even with a hex-editor, you still cannot view it. To reveal the (sender/hacker) Y! ID, simply reverse-engineer the sender.exe file.
 
Solution :: Do not receive any executable files from a unknown person on chat.
 
2. BY using fake login screens
 
They ask you to have a look at their picture by sending a link to yahoo fake login screen. It exactly look like  mail.yahoo.com page or photos.yahoo.com page.
 
It will ask you to enter your ID & password to login. If you enter your details those login details directly goes into hackers inbox. So be careful of these kind of attacks.
 
3: Cracking passwords By using Yahoo Password Crackers
 
There are many Password crackers out for cracking Yahoo passwords. If you are using a dictionary based password like  “ something, 12345, abcdef, Attitude, etc…  It takes hardly 3 hours for a good cracker to crack the password.
 
Solution :  Never use dictionary based passwords. Use a password like this..
 
           Example :  (Sec*)Pass+) .  This kind of passwords are impossible to crack
Hope now you can protect yourself from hackers, Good Luck

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