"If the allegations are true, this is an incredible violation of everything that we stand for," Everson added in response to a question on stage at the ShopTalk retail conference in New York City on Monday.

Carolyn Everson, Facebook's vice president of marketing, says that the company is "outraged and beyond disturbed" by the bombshell reports this weekend that firm Cambridge Analytica misused the data of 50 million people.

Everson is the first Facebook exec to take live, in-person questions about the recent allegations that Cambridge Analytica had never deleted improperly obtained user data that it received from a Russian-American researcher in 2015.

The firm told Facebook that it had deleted the data, while reports published by The New York Times and the Guardian this weekend said it did not. Everson reiterated that Facebook is conducting a "deep audit" to "understand what happened."

In the wake of the revelations, media and users have criticized Facebook for being lax about securing user information and for its top executives' lack of leadership in publicly addressing the situation.

The company's chief security officer, Alex Stamos, previously posted a string of tweets about how the incident didn't constitute a "data breach" and then deleted them.

tweet here

He is reportedly leaving the company due to disagreements with management about how the company deals with disinformation.

Everson said that the allegations were "an incredible violation of everything that we stand for."