This report provides an overview of aid worker security in 2012, documenting instances of abuse, kidnap, violence and murder. The report finds that, after declining in 2010, total incidents of violence against aid workers are rising again. Most of these attacks continued to take place in a small number of countries: Afghanistan, Somalia, South Sudan, Pakistan and Sudan. The analysis finds that attacks are most prevalent in weak, unstable states and those experiencing active armed conflict, suggesting that attacks on humanitarian workers are a symptom of state failure as well as a product of war.