Elon Musk's Twitter is leaning heavily on automation to moderate content, doing away with certain manual reviews and favoring restrictions on distribution rather than removing certain speech outright, its new head of trust and safety said.

Twitter is also more aggressively restricting abuse-prone hashtags and search results in areas including child exploitation, regardless of potential impacts on "benign uses" of those terms, said Twitter Vice President of Trust and Safety Product Ella Irwin.

"The biggest thing that's changed is the team is fully empowered to move fast and be as aggressive as possible," Irwin said on Thursday, in the first interview a Twitter executive has given since Musk's acquisition of the social media company in late October.