More Control: Beginning today, we’re giving you more control over what information you share with third-party applications. Apps that you use to access your direct messages will ask for your permission again. By the middle of June, applications that do not need access to your direct messages will no longer have it, and you can continue to use these apps as usual.
More Detailed Permissions Screen: When you first connect an application to Twitter, we’ll give you more detailed information about what you’re allowing the app to do with your account. These activities may include reading your Tweets, seeing who you follow, updating your profile, posting Tweets on your behalf, or accessing your direct messages. If you’re not comfortable with the level of access an application requests, simply say “No, thanks”.