A 17-year-old Florida teenager is accused of perpetrating one of the year’s biggest and most high-profile hacks: Twitter. A federal 30-count indictment filed in Tampa said Graham Ivan Clark used a phone spearphishing attack to pivot through multiple layers of Twitter’s security and bypassed its two-factor authentication to gain access to an internal “admin” tool that let the hacker take over any account. With two accomplices named in a separate federal indictment, Clark — who went by the online handle “Kirk” — allegedly used the tool to hijack the accounts…
