BELGRADE – The hacking of Democratic presidential nominee and former Secretary of State Hillary Clinton’s campaign and the Democratic National Committee’s (DNC) emails allegedly by Russia and US warnings for a response have raised questions about cyberwarfare backed by governments or groups with big budgets that are difficult to fight against, Andrey Yarnykh, head of strategic projects at Kaspersky Lab, told New Europe in Belgrade.

“Unfortunately the level of mutual accusations went up to the...