emily: that was dick costolo, former twitter ceo.omberg operates a global news network on twitter called tick-tock. next we would hear from heather bellini. her take on performance from 2018 ahead. later this hour we will speak a ceo about the cyberattack that has already plagued the olympics. this is bloomberg. ♪ ♪ emily: the ceo of salesforce says a movement is coming at facebook and it will not be pretty. he said that unilever's recent threat to pull advertisements from the social media giant is just the start of a growing backlash against facebook. --.ays i posed this question taunus guest,-- to our next heather bellini. this?ow important is a chiefnk if you are marketing officer, you want to make sure that your protecting your brand. brand safety is top of mind. it is not just for facebook, but it is also for youtube and google. it has been experiencing the same type of feedback. i think maybe some of this might be a little bit overdone. i think -- i don't think that facebook and google are tried to create an environment where t

former twitter ceo and cofounder ceo dick costolo joins us.ormer uber board member bill gurley ways in. why he sees a lot of promise ahead. our coverage this week from the goldman sachs technology conference right here in san francisco. we'll hear from tech heavyweights throughout the hour including the ceos of gopro, ripple, and goldman sachs. let's kick it off with david solomon, goldman sachs resident and co-coo. david: the year is set up in a way in which i think it should be very constructive for m&a activity and ipo activity. ipo activity started to pick up toward the end of we have got a 2017. very healthy ipo backlog, but we also have an environment for a variety of reasons why meeting for a8 should set up strategic year for m&a. private market valuations, are they healthy right now? i think private market valuations have heightened the bit over the last 12-24 months. capital has been tighter for private market funding. i would not say that valuations are bubbly. in an environment for the last five years where growth was sluggish inves

. >> that was dick costolo. miter, bloomberg lp operates a breaking news network on twitter called tick-tock. still ahead, we'll hear from wall street heavyweight heather bellini who covers off of that and facebook for goldman sachs, her take on performance in 2018 ahead. plus we will speak with the fire ice and quiz him about the cyber attack at the liv-ex. liv-ex.this is bloomberg. ♪ of salesforce as a is coming at facebook and it won't be pretty. marc benioff said that the reason 30 paul house from the social media giant is just the start of a growing backlash against facebook. he also criticized facebook's decision to dismiss human editors in favor of our rhythms saying that that started the downward spiraling that they are in today. i post this question to our next guest, heather bellini. we talked to her at this recent goldman sachs conference and i asked her how concerning is the threat to post ads from facebook? >> i think that if you are a chief marketing officer, you want to make sure you are protectin

dick costolo joins us. former cooper board member -- uber board member bill gurley joins us.