Yeah, same with all these new services popping up like Square Cash that if you have access to someone's email you can send money to anyway without any other ver

Yeah, same with all these new services popping up like Square Cash that if you have access to someone's email you can send money to anyway without any other verification. I think it comes down to convenience outweighing the downsides. Since for most people it won't be an issue and for anyone it does happen to, they would simply notify their Bank immediately who would simply void the charges while they look into the fraud. I assume Twitter or Starbucks sends a receipt email after a Tweetacoffee occurs. It would make sense to require users to enable double authentication in Twitter to be able to use the send money feature or in gmail to use Square Cash but doubt that would ever happen since people can already enable double authentication and the people who don't, don't know how to or don't want to and forcing them to would defeat the whole purpose which is convenience. Good point though and will be interesting to see what happens with all of these services.