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Tech companies can use differential privacy to collect and share aggregate data about user habits, while maintaining individual privacy. Tim Snell/Flickr

Explainer: what is differential privacy and how can it protect your data?

How should privacy be protected in a world where data is gathered and shared with increasing speed and ingenuity? Differential privacy, a new model of cyber security, provides a potential solution.
There are widespread fears that so-called echo chambers and filter bubbles are leading to political polarization that poses a danger to democracy. But are the fears unfounded? (Melvin Sokolsky/1963 via Creative Commons)

The myth of the echo chamber

Despite fears that so-called echo chambers are causing political polarization, a new study suggests it's not the case.
The negative effects of social media have pushed tech companies to take more responsibility for the health of their users. Shutterstock

Why social media are more like chocolate than cigarettes

Critics want social media platforms regulated like Big Tobacco, but our research shows that their impact on your health depends on how you use them.
Social media has become a place of vitriolic myths about Indigenous peoples in the wake of the Gerald Stanley trial for the killing of Colten Boushie. Here, a vigil in support of Colten Boushie’s family on Feb. 13, 2018. THE CANADIAN PRESS/Ryan Remiorz

Social media full of vitriolic myths in the aftermath of the Stanley trial

Social media posts since Gerald Stanley’s acquittal have been saturated with vitriolic rants and myths. If reconciliation is to be more than an aspiration, settlers must acknowledge our culpability.
Indigenous, LGBT, Black and refugee youth are among the groups that are at a greater risk of cyberbullying than others. But youth can also be powerful agents of change. Clarke Sanders/Unsplash

Don’t be a bystander: Five steps to fight cyberbullying

Cyberbullying has become destructive and feels unstoppable. Here is a five-step technique for dealing with it.
Message from the Unseen World, an installation of a Turing-inspired algorithm reciting a poem. by Nick Drake. Roger Marks/Flickr

Digital public: looking at what algorithms actually do

Today's communications platforms and the algorithms that power them have led to a radical change in how public discourse is conducted and public opinion formed.
Under fire: Facebook founder and CEO Mark Zuckerberg. AP Photo/Jeff Roberson

How Facebook could really fix itself

A scholar of digital trust evaluates Facebook's current efforts and proposes some improvements the company could make.
People feeling anxious about social interactions can find support and solace on social media. Dean Drobot/

Online social networks can help fight social anxiety

Posting on social media, reaching a group of friends all at once, can make connecting with others less threatening for people who experience social anxiety.

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