Symphony, the secure messaging app backed by some of Wall Street's biggest names, launched this week to much fanfare, with events in New York, London, Singapore, and Hong Kong. The online app replicates the chat application found in Bloomberg, one of the service's most popular features, and combines it with elements of social media — users have walls where they can post their thoughts and you can search for hashtags used in these posts, as well as on Twitter. The project was spearheaded by Goldman Sachs, which led a coalition of investment banks in buying chat app Perzo for $66 million (£42.2 million) last October.

http://uk.businessinsider.com/interview-with-symphony-ceo-david-gurle-2015-9