In this week’s Cyber Security Brief, Dick O’Brien is joined by Candid Wueest and Brigid O’Gorman to discuss some of the biggest cyber security stories of the last week. Topics on the agenda include: controversy over Apple allowing a police-tracking app to be carried on its App Store in Hong Kong, a ruling from the European Court of Justice that could have big implications for social media platforms, new technology that claims it can identify people through walls from their gait using just Wi-Fi receivers, and a whole lot of data breaches. Also, Candid tells us about the it-sa: IT Security Expo and Congress, which he is attending and presenting at in Nuremberg, Germany, this week.