Your credentials are secure. First, Twitter requests you to authorize Convergence to access your feed and to publish tweets to your feed upon login. Second, Convergence does not store your Twitter password unless you specifically request it. Convergence does not post anything to your feed that you did not post. Finally, Convergence does not share your information with other Convergence users who are not your Twitter followers.
At any time, you can revoke Convergence access to your Twitter account. To do so, follow these steps:
Log into www.twitter.com in a web browser.
Click Settings.
Click Connections.
Find the OCUS Convergence application on the page; click Revoke Access.
Note - At no point does Convergence store your Twitter user name or password.