Google blocked 780m 'bad ads' in 2015 such as weight-loss scams

Company promises to add new protections agains malware and bots in 2016

Google banned almost 800m "bad" adverts from its online ad networks last year as the web giant continued to crack down on advertising fraud.

The figure of 780m was an almost 50% increase on 2014. Google also said that this year would see a major focus on stepping up efforts to fight back against bots - software applications that mimic the behaviour of internet users.