There is no way a hacker could steal your RS Account information. We do not store it in our servers at all. We do not send it through a connection in any way. If someone "hacked our client," they would have to first steal our unobfuscated client directly off of the developers computers, change the code, remove our security methods, then upload the link via the site. The chances of this happening are about.. 0%
Of course it's near 0%, just playing devils advocate to not entirely rule out the possibility :P. Thanks for the comforting words.