CEO Jack Dorsey has tapped Peiter Zatko, otherwise known as famed white-hat hacker “Mudge,” as the new head of security at Twitter. Zatko is undergoing a review period for 45-60 days before assuming full control of the platform’s security, which encompasses a range of needs. Reuters reported that Zatko said he will examine “information security, site integrity, physical security, platform integrity – which starts to touch on abuse and manipulation of the platform – and engineering.”