Lots of Windows Phone developers want access to SMS*. It's an
interesting data source and can allow the creation of lots of useful,
helpful and interesting apps. There are security implications of
allowing such access though and, unfortunately, most developers seem
happy to ignore this or not take it seriously.
Today I heard about a scam that was only possible due to SMS access and "stole an estimated 36+ million Euros from more than 30,000 bank customers from multiple banks" (emphasis mine).
You can read more about the Eurograbber attack here but I think the important takeaway for developers is to focus on security and not easily dismiss or criticise platform limitations and restrictions that are there to protect the person who's phone it is.
And for everyone entering passwords or security information on a website. Always type in the domain for a website directly. Avoid following links, especially if it's a shortened or redirect link.
* If you don't know, Windows Phone does not allow developers of third party apps to access a phone's SMS history as part of it's strategy for protecting data security.