FB status updater: security issues?

This looks like a very helpful plugin but I am concerned about security issues: http://www.francesco-castaldo.com/plugins-and-widgets/fb-status-updater/

You need to give it your Facebook and Twitter log on info – is there any way to maximize security for something like this or do you think it’s too much of a risk?

It would save a lot of time if it worked and was secure!!

Thanks for any opinions/advice.