‘We are not ready’: a cyber expert on US vulnerability to a Russian attack

Ukrainian websites have been subjected to a relentless series of attacks - but what will happen when the sights are set on America?

The war between Russia and Ukraine has been widely anticipated to play out online, in addition to on the ground.

Moscow's cyberwar capabilities have long been cause for concern. Russia has a record of coordinating cyber-attacks on the US, Ukraine and other adversaries. And the country has established itself in recent years as an international hub for cybercrime.