Key service providers kick the controversial message board, which has been used to celebrate mass shootings, off the mainstream internet. In what form might it resurface? Plus "warshipping" is one of the latest threats to corporate security presented at the annual Black Hat hackers' conference. Presented by Rory Cellan-Jones, with BBC tech reporters Chris Fox and Dave Lee, and special guests Kate Bevan, editor of Which? Computing, and Poppy Gustafsson, co-CEO of Darktrace.

(Image: Stock photo of a bundle of unplugged network cables, Credit: Getty Images Plus).