'We live in a terrarium': Larry Fink on why today's leaders should be 'more guarded'

BlackRock CEO Larry Fink

Brendan McDermid/Reuters

• Larry Fink has some words of wisdom for leaders navigating the age of populism and social media.
• Be more "guarded" and careful what you say, internally and externally.
• The BlackRock chairman and CEO made the comments at the Forbes Iconoclast summit.

BlackRock CEO Larry Fink has some words of wisdom for leaders navigating the age of populism and social media: Watch what you say.

"You have to be a lot more guarded," Fink said on Thursday.