Facebook and Twitter can still stalk you online even if you DELETE your account
WATCHING OVER YOU Facebook and Twitter can still stalk
you online even if you DELETE your account – by spying on your friends
It's bad news for anyone who values their privacy
By Sean Keach 22nd January 2019, 5:16 pm
DELETING your social media won't stop tech firms from
tracking your every move.
That's the terrifying conclusion from a new study that
investigated how apps like Facebook and Twitter can follow people who don't
even use social media sites.
Last year saw Facebook admit to a number of privacy
blunders that left tens of millions of users exposed.
Many users responded by simply deleting their Facebook
accounts – their only hope of regaining control over privacy.
But research published in Nature Human Behaviour shows
that account deletion isn't enough.
Data scientists were able to accurately predict a
person's posts without ever looking at their social profile.
"There's no place to hide on a social network,"
said Lewis Mitchell, co-author and senior lecturer in applied mathematics at
the University of Adelaide.
More than 30 million Twitter posts from 13,905 users were
gathered up by the University of Vermont and the University of Adelaide.
Researchers were then able to use the information from
Twitter messages of 8 or 9 of a person's contacts – and then predict that
person's later tweets.
According to the study, even if a person leaves a social
media site (or never even joined), posts from friends can still provide about
95% of the "potential predictive accuracy".
"You think you're giving up your information, but
you're giving up your friends' information too," said James Bagrow, a
mathematician at the University of Vermont who led the research.
It means that normal people will struggle to avoid the clutches
of social media sites, who can build profiles on people and use this for
ad-targeting purposes.
Even if you don't have social media accounts, it's still
possible for websites to track your movements across the web – building a
picture of what you like and don't like.
This can then be used to show you ads that companies
think you may be interested in.
And even if you never use any social media site, it's
still possible to build up a profile on you, researchers warn.
"You alone don't control your privacy on social
media platforms," said Bagrow.
"Your friends have a say too."
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