Have you got any email notifying to change your twitter account password by clicking the given link in the same mail saying that they have already made change in your password and you should follow that given link to change again that you can use. If you are giving the answer yes then proceed as guidelines are, or not got any email like this then also proceed to your twitter account and create a new password for safety reasons.
When you will move for more information that why twitter made this mail for you will surely get the a very familiar massage in social networks as ” your twitter account faced phishing attack “.
Phishing attack : is the criminally fraudulent process of attempting to acquire sensitive information such as usernames, passwords and credit card details by masquerading as a trustworthy entity in an electronic communication.
That mail looks like this (in English) :-
What should be the next step ?
Now your first and immediate move should be try to login in your twitter account with the same old password you have made set ever and see what happens, if not giving access then go through the link given in that notification mail and change your password ASAP and don’t forget to choose some very strange and strong combination of words and numbers for your password because this is the network where cyber criminals may gain more than their imaginations after hacking some highly visible accounts and don’t forget your followers will get something wrong and effective at your image to wash away all your earnings as relationship and management if that’s a personal or company profile.
How and why you take immediate action after getting this type of mail ? have you done any research or news after facing this problem of not getting access in your twitter account ?

Social networks are on the boom and that’s why it’s a probability that someone will try to take advantages of your friends and contacts for free if gets free access to your account and that’s why for the safety reasons you should keep changing your account on the weekly or monthly basis depend on your activity and how important is that for you.
Useful article for everybody
Thanks for sharing this information.Since many people are using twitter for their online business, this information will be very useful for them.
I know that there’s a prevention of Phishing attack in Yahoo mail. but, first time coming across Phishing attack in twitter. Very informative article.