Most governments monitor and prioritize agriculture. Subsidies and loans to farmers to promote food production are common in many countries. They are pushing farmers to employ modern agrarian technology to boost grain quality and farming. Smart farming relies on Wireless Sensor Networks and the Internet of Things. Using the above technology, farmers may monitor their property remotely and manage their farms at any time sensors nodes installed on fields capture agricultural growth data using GPS. Sensor nodes collect data on soil nutrient levels, temperature, and humidity. The sensor delivers data to a wireless gateway, which sends it to a remote server. Researchers and scientists have been working hard to improve farmers' productivity, quantity, and quality. This study examines the impact of new technologies and sensors used in smart farming on food security and how such devices are transforming agricultural sectors to meet rising population demands.