Twitter chief says was unprepared for 'weaponized' social media efforts

Twitter was "unprepared and ill-equipped" for the vast campaigns of manipulation that affected social media in the past few years, chief executive Jack Dorsey told lawmakers Wednesday.

Dorsey, appearing before a Senate Intelligence Committee hearing on foreign influence campaigns on social media, said the messaging service was set up to function as a "public square" but failed to deal with "abuse, harassment, troll armies, propaganda through bots."
"But we all have to think a lot bigger, and decades past today. We must ask the question 'what is Twitter incentivizing people to do (or not do), and why?' The answers will lead to tectonic shifts in how Twitter, and our industry, operates. Required changes won't be fast or easy."