Facebook troubles worsened late Thursday with the leak of a two-year-old memo from a high-ranking executive hinting that the social network was determined to grow despite risks to users.

Facebook on Wednesday unveiled new privacy settings aiming to give its users more control over how their data is shared, following an outcry over hijacking of personal information at the giant social network.

The news that Facebook's Android app has been collecting call and text histories is yet another black eye for the social media giant. But just why was Facebook able to siphon off records of who its users were contacting — and when — in the first place?

The short answer: Because Google let it. The longer answer: Well, it's complicated.

On the same day Facebook bought ads in U.S. and British newspapers to apologize for the Cambridge Analytica scandal, the social media site faced new questions about collecting phone numbers and text messages from Android devices.

The website Ars Technica reported that users who checked data gathered by Facebook on them found that it had years of contact names, telephone numbers, call lengths and text messages.

"Drones have become my passion," says Noursely Doumbia, who holds a degree in electronics and is currently learning to pilot drones as part of a pioneering program in Ivory Coast's economic capital Abidjan.

The use of Facebook data to target voters has triggered global outrage with the Cambridge Analytica scandal. But the concept is nothing new: Barack Obama made extensive use of the social network in 2008 and stepped up "micro-targeting" in his 2012 re-election effort.

Tumblr announced Friday the blogging platform was used by a shadowy Russian internet group to spread disinformation during the 2016 election campaign as it published the 84 account handles linked to the effort.

Mark Zuckerberg rose to wealth and fame with a mission of connecting everyone through Facebook, but now faces the wrath of users outraged he isn't doing more to defend their data.

Internet giants Facebook and Google on Thursday testified before a parliamentary committee in Singapore as they warned the city-state against introducing new laws to combat "fake news", saying that existing legislation is adequate to address the problem.

Britain's culture minister said Thursday that Facebook chief Mark Zuckerberg's plan to fix problems at the world's biggest social media network did not go far enough.