In this week’s Cyber Security Brief, the last one of 2020, find out all you need to know about the biggest news story of the week - the Sunburst supply chain attack targeting customers of software company SolarWinds. This is one of the biggest cyber security stories of the year, with thousands of organizations affected. Dick O’Brien and Symantec threat analyst Gavin O’Gorman give a comprehensive rundown of everything we know about this attack so far. Also, Twitter is handed a big fine by the Irish data regulator, and bug reports jump in 2020.