The director of the FBI says cyber threats are a constant focus of his agency and he is determined to thwart them, whatever the source.

FOX's Gurnal Scott with more:

FBI director James Comey says when it comes to cyber security, the biggest threats are first and foremost:

(Comey) "Nation states, think: China, Russia, Iran, North Korea." 

But there are internal threats as well. People who might be motivated:

(Comey) "To penetrate a network that is well defended from the outside by penetrating it from the inside." 

Speaking at a conference in Boston, Comey said the internet has put "bad actors" within a keystroke of good people and the FBI is fighting to stop that.

Comey even quipped about job security at the event, saying he plans to finish his 10-year term, even after disputing President Trump's allegation that he was wiretapped during the campaign.

Gurnal Scott, FOX News.

Follow Gurnal Scott on Twitter: @GurnalScott