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Articles on Security

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The depths of the valleys on a key act like a code that must match the lock. Robin Smith/The Image Bank via Getty Images

How do keys open locks?

A computer security expert explains how keys work – and how they are like passwords.
Some African and European leaders at the last AU-EU summit in Abidjan, Cote d'Ivoire, November 2017. Philippe Wojazer/AFP via Getty Images

Africa’s relations with the EU: a reset is possible if Europe changes its attitude

The persistent power inequalities between Africa and Europe do not bode well for supposed change. This is why the latest summit is important.
Beginning this summer, you might need to upload a selfie and a photo ID to a private company, ID.me, if you want to file your taxes online. Oscar Wong/Moment via Getty Images

Government agencies are tapping a facial recognition company to prove you’re you – here’s why that raises concerns about privacy, accuracy and fairness

Federal and state governments are turning to a facial recognition company to ensure that people accessing services are who they say they are. The move promises to cut down on fraud, but at what cost?
Nigeria’s President Muhammadu Buhari signs a document alongside Minister of Justice Abubakar Malami next24online/NurPhoto via Getty Images

When can Nigeria declare a state of emergency?

A state of emergency can be easily abused and lead to violations of fundamental human rights.
A woman waves a Canadian flag as the frigate HMCS Halifax heads from the harbour in Halifax in January 2021 to start a six-month deployment in the Mediterranean Sea to assist in NATO counter-terrorism patrols. THE CANADIAN PRESS/Andrew Vaughan

Canada’s exclusion from the AUKUS security pact reveals a failing national defence policy

Canada’s ‘fireproof house’ defence strategy is causing problems among its allies. When you are convinced you live in a gated community, the pressure to invest in alarms for your home disappears.

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