Malware that launched the net’s largest ever cyber-attack last year had links to Minecraft servers, according to those investigating it. Security blogger Brian Krebs has spent months investigating the attack which knocked his blog offline. He claims that the origins of the Mirai botnet can be traced back to rivalries in the Minecraft community. His claims are backed up by …

Findings published as experts warn that paralysing illness could overwhelm intensive care wards of Latin America Doctor treats a patient with Guillain-Barré syndrome in Cúcuta, Colombia. Photograph: Ricardo Mazalan/AP Scientists have amassed the strongest evidence yet that the Zika virus can cause the serious neurological condition Guillain-Barré syndrome, and are warning that the potential number of cases of the paralysing …