This sounds like a good idea. I think it gets one thing wrong: Hacking living social was not about gaining access to anyone's living social account. It was abou

This sounds like a good idea. I think it gets one thing wrong: Hacking living social was not about gaining access to anyone's living social account. It was about getting passwords that were reused on sites that actually matter (banking, etc). A notification that someone has logged into your livingsocial|facebook|twitter|linkedin is only valuable if it compels you to immediately change all of your other passwords. Which might be a decent idea for a version 2 of this hypothetical software...automatically change all of my passwords whenever one of my accounts is compromised. The sad thing is that people reuse their passwords so often. Just remembering two passwords, one for important stuff and one for social stuff, would go a long way toward making this a non-problem and taking a security burden off of a lot of startups.