This paper presents a literature review regarding the supply chain risks. The principle intention is to distinguish and characterize the risks compromising the Supply Chain. The operations complexity makes managing the supply chain risks a significant challenge; and any complexity prompts risks and vulnerabilities. The literature review of 160 publications permitted us to accumulate a few risks that are assembled into operational and disruption risks, ordered appropriately to their appearance in the publications, which allowed us to focus on the risks, and perceive their consequences on the smooth running of the supply chain. At last, it is necessary to be aware and knowledgeable about these risks in order to take them into consideration, so as to work on mitigation actions and alleviate any damage to the supply chain performance.