Cambridge Analytica > Facebook profiles
The psychology behind Facebook data breach Video BBC News 4 April 2018
Facebook has said it now believes
up to 87 million people's data
was improperly shared
with the political consultancy Cambridge Analytica
- many more than previously disclosed.
The BBC has been told
that about 1.1 million of them are UK-based.
The overall figure had been previously quoted
as being 50 million
by the whistleblower Christopher Wylie.
The details were revealed in a blog
by the tech firm's chief technology officer,
The BBC has also learned
that Facebook now estimates
that about 305,000 people had installed
the This Is Your Digital Life quiz
that had made the data-harvesting possible.
The figure previously suggested
had been 270,000.
Cambridge Analytica whistleblower:
'We spent $1m harvesting millions of Facebook profiles' G 17 March 2018
Cambridge Analytica whistleblower: 'We spent $1m harvesting millions of Facebook profiles' Video G 17 March 2018
who worked for data firm Cambridge Analytica,
reveals how personal information was taken
without authorisation in early 2014
to build a system that could profile individual US voters
in order to target them
with personalised political advertisements.
At the time the company was owned
by the hedge fund billionaire Robert Mercer,
and headed at the time by Donald Trumpís key adviser,
Steve Bannon. Its CEO is Alexander Nix
What is the Cambridge Analytica scandal? G 20 March 2018
What is the Cambridge Analytica scandal? Video G 20 March 2018
claims to use data 'to change audience behaviour'.
But now a whistleblower, Christopher Wylie,
has come forward to expose the company's practices.
Wylie describes how its CEO, Alexander Nix,
attracted support from the then Breitbart editor, Steve Bannon,
and investment from the billionaire Robert Mercer
before obtaining help from the Cambridge professor Aleksandr Kogan
to harvest tens of millions of Facebook profiles
Cambridge Analytica: Undercover Secrets of Trump's Data Firm C4 20 March 2018
Cambridge Analytica: Undercover Secrets of Trump's Data Firm Video Channel 4 News 20 March 2018
An investigation by Channel 4 News has revealed
how Cambridge Analytica claims
it ran Ďallí of President Trumpís digital campaign
- and may have broken election law.
Executives were secretly filmed
saying they leave Ďno paper trailí.
Cambridge Analytica scandal / files UK / USA
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