Dow Jones announced on September 19, 2013, that Mossberg would leave The Wall Street Journal as part of the breakup with AllThingsD by the end of the year.

[1] AllThingsD was a technology conference and web site owned by Dow Jones but created and operated by Mossberg and Kara Swisher.

He was based in the Journal's Washington, D.C., office, where he spent 18 years covering national and international affairs before turning his attention to technology.

He appeared weekly on CNBC, and in web videos, and was on numerous times a guest on the Charlie Rose Show,[5] airing on PBS stations.

In 2001, he won the World Technology Award for Media and Journalism and received an honorary Doctorate of Law from the University of Rhode Island.

"[7] A 2007 profile in the New Yorker was entitled "Everyone Listens to Walter Mossberg" and declared him "someone whose judgment can ratify years of effort or sink the show.

[9] In partnership with his fellow Journal columnist Kara Swisher, Mossberg created, produced and hosted the Journal's annual All Things Digital conference in Carlsbad, California, in which well-known technology leaders, such as Bill Gates, Steve Jobs and Elon Musk,[10] appeared on stage without prepared remarks, or slides, and were interviewed by the two columnists.