Gmail: always looking out for you

I’ve never seen this before, but I just logged into my Gmail account, and this bar was across the top:

Yikes!

Clicking the link took me to this summary, where I changed my password. Thanks Google!

One thing that would be really good though: the ability to lock down my account so that I can only log in from, say, UK-based IP addresses. I know that proxies would still mean I wasn’t totally safe, but given that I hardly ever use email outside the UK, and I’d be happy to have to ‘enable roaming’ on my email account, I think it would be a worthwhile security option.