To be sure, developing an ÐApp requires careful attention to the cost of computation and storage on the blockchain and often some of these will more properly belong on some other resource. But centralized front ends and middleware present rich attack surfaces to dark hat “security consultants” who get paid as much at they can take as they point out flaws in the systems they have chosen to look over. Putting a front end in the EthBrowser and having the back end blockchain cryptographically integrated presents a very small attack surface compared to web sites hosted at centralized cloud services.