North Korea has been fanning World War 3 fears with its refusal to shut down its nuclear weapons development programme.
But Mr Hurd said President Donald Trump helped to spur despot leader Kim Jong-un into diplomatic talks with South Korea with his “tough” strategy.
The US Representative said: “Here’s a thing I’ve learned as an undercover officer in the CIA: be nice with nice guys, and tough with tough guys.
“You may not like the tactic but the actions, and what those tactics are producing, have been successful.”
North Korea unexpectedly announced it would send athletes to the Pyeongchang Winter Olympics, signalling leader Kim would be open to discuss a diplomatic resolution to the tension his missile tests have been fueling over the past year.
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Mr Hurd suggested the Trump Administration had succeeded to rally international support in its quest to end North Korea’s nuclear ambitions.
Speaking to Fox&Friends, he continued: “We have to look at what is actually happening. The fact that North Korea picked up the phone and called South Korea to start a dialogue, that’s a big deal.
“That’s a good thing in order to resolve this escalation of tensions with diplomacy. The fact that the North Koreans are talking about joining the Olympics, participating in the Olympics, is a big deal.
“The fact that we have China working with us on sanctions against on North Korea is good. A year ago nobody thought that was possible.”
It comes after President Trump warned the North Korean dictator he had a “much bigger and more powerful” nuclear button at the ready in the event of an attack from Pyongyang.
Mr Trump wrote on Twitter: “North Korean Leader Kim Jong-un just stated that the ‘nuclear button is on his desk at all times’.
“Will someone from his depleted and food starved regime please inform him that I too have a nuclear button, but it is a much bigger and more powerful one than his, and my button works.”