The Manchester-based cybersecurity company VST Enterprises is working a digital health company Circle Pass Enterprises to create the “Covi-pass” digital health passport intended to allow holders to work and travel safely. The Covi-pass uses a colour system of red, green, and amber to indicate whether the holder has tested positive or negative for the coronavirus, and holds other key information such as name, address, and age, plus a biometric. Despite the challenge of sourcing enough…