Facebooks M Takes on Siri and Google Now

Facebook has built M, a virtual assistant that will live in the companys Messenger iOS and Android apps, and compete directly with Apples Siri, Google Now, Microsofts Cortana and Amazons Alexa. Amir Mizroch reports. Photo: Facebook Subscribe to the WSJ channel here: More from the Wall Street Journal: Visit Follow WSJ on Facebook: Follow WSJ on Google+: Follow WSJ on Twitter: