The UK government has published a security guidance for using Samsung KNOX on select Samsung smartphones and tablets, giving the devices a stamp of approval for public sector use. The decision follows months of testing by the Communications and Electronics Security Group, a UK body tasked with addressing communications security. The End User Devices Security Guidance affects Samsung devices with Android 4.3 and Samsung’s enterprise security platform KNOX, which provides enhanced hardware and software protection, device encryption, per-app VPN capability, and a secure app store.