If North Korea, believed to be training cyberwarriors at schools, is indeed responsible for the latest attack, Choi said the world should stop underestimating its capabilities and work together to think of a new way to respond to cyber threats, such as having China pull the plug on North Korea's internet.
"The conversations that I have had and that have been made with my counterpart and in dealing with Beijing is that, if [North Korea] did something else, and if it looked to be long-range - which this does - and if it looks like it's proactively leaning toward an ICBM - which it does - then we would take action", Haley told reporters.
Nikki Haley also says any country that doesn't implement United Nations sanctions is supporting Pyongyang.
North Korea conducted its seventh ballistic missile test this year on Sunday, just ahead of the opening of an global infrastructure forum in Beijing, attended by 29 heads of state.
Haley said the Security Council is going to send a strong and unified message to North Korea that "the worldwide community wants to support you but as long as you test, and as long as you continue your nuclear program, you are on an island by yourself".
Traditionally, the United States and China have negotiated new sanctions before involving remaining council members. "Time is running out and the clock is ticking towards the tipping point".
"Obviously, Pyongyang, with this missile launch, Pyongyang tried to test the resolve of the new government in its pursuit of denuclearization of North Korea", Seoul's U.N. Ambassador Cho Tae-yul told reporters.
An Indian-origin security researcher with Google has found evidence suggesting that North Korean hackers may have carried out the "unprecedented" ransomware cyberattack that hit over 150 countries, including India.More news: Trump says 'fast decision' possible on new Federal Bureau of Investigation director
Communication channels between the two Koreas were severed by North Korea after February 2016, Lee said, in the wake of sanctions following North Korea's last nuclear test and Pyongyang's decision to shut down a joint industrial zone operated inside the North.
Hong said he would discuss North Korea with high-ranking officials in Washington.
The U.S. ambassador said Russian Federation has the same decision to make as the rest of the worldwide community: "You either support North Korea or you don't, but you have to choose".
No draft resolution was circulated to the full council, but Haley said the United States was working with China on a text.
All of those attacks were linked to North Korea; President Barack Obama formally charged the North in late 2014 with destroying computers at Sony in retaliation for a comedy, "The Interview", that envisioned a Central Intelligence Agency plot to kill Kim Jong Un, the country's leader.
He also said the North is estimated to have enough plutonium and highly enriched uranium for 20 to 25 nuclear weapons.
"We're not trying to do any of those things", she said.
This story has been corrected to show that when Haley was answering Putin she was referring to comments about the United States, not the United Nations.