Columbia University’s hacker breached data systems last week, stealing troves of student documents while briefly shutting down the school’s computer systems. According to a university official on Wednesday, the June 24 cyberattack prompted widespread network outages on campus, locking students and staff out of their email accounts, coursework and video conference software for several hours. On the same day, images of President Donald Trump’s smiling face appeared on several public monitors across the Manhattan campus. A spokesperson said it was unclear if the Trump photo display was connected to the data breach. “We are investigating the scope of the apparent...

The US Agency for International Development (USAID) has officially closed its doors after President Donald Trump gradually dismantled the agency over its allegedly wasteful spending. More than 80% of all the agency’s programmes were cancelled as of March, and on Tuesday the remainder were formally absorbed by the state department. The shuttering of USAID – which administered aid for the US government, the world’s largest such provider – has been newly criticised by former Presidents Barack Obama and George W Bush. These aid cuts could cause more than 14 million additional deaths by 2030, according to a warning published by...