Precision agriculture has emerged as an important topic in different contexts, as it is considered a potential solution to some of the most critical global challenges: global warming and its effects on crops, cyber attacks on food supply chains, decreasing availability in labor, and the list continues. The scope of the current paper is to make a survey on security and ethical considerations of precision agriculture, to understand the phenomenon behind it: from background, to challenges and potential solutions. It is critical to discover what can become an attack surface and generate vulnerabilities, by studying in-depth patterns, trends, standards, and best practices. Only then can one propose solutions to existing challenges and offer guidelines for building a system following the secure-by-design principle. In addition, ethics and regulations in precision agriculture are considered, as specific literature does not cover this perspective, enabling the current study to fill an important gap. In conclusion, technology plays an important role in all relevant fields today, and agriculture is no exception, as the food industry will remain one of the pillars of global security and development. This survey identifies three critical gaps: regulatory-technical implementation challenges, vulnerability cascading traceability issues, and human-centered security vulnerabilities specific to agricultural contexts.