SAN FRANCISCO: Elon Musk’s ownership of Twitter descended deeper into chaos as key security executives resigned from the platform, drawing a sharp warning from US regulators.

The walkouts came after a turbulent launch of new Twitter features following the Tesla and SpaceX owner’s $44 billion buyout of the influential messaging app. Musk warned employees Thursday that the site was burning through cash dangerously fast, raising the specter of bankruptcy if the situation was not turned around.

“I’ve made the hard decision to leave Twitter,” tweeted chief security officer Lea Kissner, who reportedly stepped down with other key privacy or security executives.