The expansion of IoT and 5G networks implies an increasing need to protect cellular connected devices from infiltration and attack. This requires new security solutions especially for devices applied in critical infrastructure and systems. FirstPoint introduces a new approach in cyber security by seamlessly protecting all cellular devices from currently undetectable threats that may be hidden in the cellular network. Covering both random and targeted cyber attacks, such as cellular Man-in-the-Middle, location tracking and preventing data leakage. In a decentral and mobile enabled energy world FirstPoint can help to secure the reliable operation of a highly interlinked infrastructure with simple deployment and maintaining performance of the device.