The U.K. and its allies should make attribution a priority, Jeremy Wright argues.

An Accenture survey found that 87 percent of focused cyberattacks are prevented, compared to 70 percent reported in a similar study a year ago. Those numbers could easily be even higher, the consultancy said.

Among the oligarchs sanctioned is Oleg Deripaska, founder and owner of one of the largest Russian industrial groups.

Russian intelligence services have been capable of hijacking satellite signals to launch stealthy cyberattacks since at least 2013.

Newly unveiled indictments against a group of hackers working for Russian intelligence, who were involved in breaching Yahoo and Google, will do little to deter future cyberattacks against the U.S., former NSA analysts and government lawyers tell CyberScoop. The Justice Department revealed charges on Wednesday against four alleged hackers responsible for compromising upwards of 500 million Yahoo accounts in 2014. The indictment states that the accused used their access to Yahoo and Google email accounts to enrich themselves and to spy on diplomats, journalists and business executives.

The reporting rules have changed, so the numbers of incidents aren't directly comparable with last year, but officials say the picture shows progress.