The deteriorating security situation for aid workers remains one of the vital but overlooked issues in humanitarian aid. Despite advancements in ensuring respect for International Humanitarian Law, violations of its rules remain a widespread problem. The increase in attacks against aid workers in recent years once again raises questions concerning the scope of their protection and ways to improve it. One principal reason behind this negative trend has been the shift in the nature of conflicts and the role of the “war on terror” in undermining the laws authority. Other reasons stem from internal developments of humanitarian actors, namely a lack of transparency or the cooptation of aid. This results in increased politicization and the disintegration of the civilian nature of humanitarian assistance. Analyzing these developments, the author proposes the application of International Humanitarian Law without making a distinction as to the source of obligation to all parties involved in a conflict, as a promising way to achieve greater adherence to International Humanitarian Law and thus a solution to keep aid workers safe.