h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

Microsoft are telling everyone to stop using their browser (I've been saying that for years):
http://news.bbc.co.uk/1/hi/technology/7784908.stm

P.S. I suggest this one instead:
http://www.opera.com/browser

I've recently noticed that we keep getting spam messages from ourselves.
Is this related?
And should I be worried?
Is there anything I can do, apart from deleting cookies and using a different browser?

You could try using a different operating system

Opera is supposed to have big security flaws too. I am using Firefox at mo but a ZDnet tech update email I had today reckons that most of the main browsers have security problems!!!!!

All browsers have some security problems, especially if you're stupid enough to store your banking passwords on your browser for all to find(glares at chap at work who just got 2 grand downloaded from his bank account).

However, Opera comes with a whole load of built in security to alert you when you click on a dodgy link, fraud protection, anti phishing features and it supports (ahem! - reads from techie blurb) Secure Socket Layer v3 (v2 is supposed to be pants, security wise) and TLS, which apparently gives it the highest available security of any Web browser. Opera 10 is going to have a built in spell checker too.