Microsoft analysis shows phishing was the top attack vector for yet another year. The proportion of inbound emails containing phishing messages surged 250% between the beginning and end of 2018. Phishing emails were used to distribute a wide variety of malware, including zero-day payloads. Microsoft said attackers are trying to avoid detection by using public and hosted cloud infrastructures to hide among legitimate sites and assets. The continued innovation around phishing is worrisome, says digital trust analyst Usman Rahim.”]