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The government’s approach to encryption could make us more vulnerable

It's impossible to create a backdoor that only the "good guys" can use

By Wendy M. Grossman  

After WhatsApp was used by the Westminster attacker, Amber Rudd vowed to take on encryption. Photo: PA

From pig Latin to the complex mathematics of today’s computer encryption, encoding communications is as old as humanity. Often, as with Alan Turing’s work in World War II, cracking the enemy’s codes has conferred crucial military advantage.

Because the internet was designed to share, rather than secure, information, encryption plays several important roles in today’s digitised landscape. It ensures that sensitive data can’t be read by unauthorised people: when a healthcare manager forgets…

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