Intel Security Quiz Showcases Challenges in Distinguishing Legitimate Emails from Phishing Emails. 80% of all respondents misidentified at least one of the phishing emails, which is all it takes to fall victim to an attack. The 35-44 year old age group performed best, answering an average of 68% questions accurately. The U.S. ranked 27 overall in ability to detect phishing, with 68% accuracy. The five best performing countries were France (1), Sweden (2), Hungary (3), the Netherlands (4), and Spain (5)”]