In a letter to the North Korean dictator, the US president says talks are 'inappropriate' based on the open hostility displayed in the recent statement.
The cyber attack affected the internet-connected televisions at the media centres and also shut down the official Winter Olympics website for around 20 minutes.
Singapore PM Lee Hsien Loong says the country will spend 20 million dollars to host the summit.
'Trump forgets that Kim is not one who likes to be treated publicly as a pauper; he wants to come to the table as an equal, and from a position of perceived strength, not as a suppliant,' says Dr Rajaram Panda.
Spectacular IMAGES from the closing ceremony of the 2018 Winter Olympics held in Pyeongchang, South Korea
When the North Korean athletes took over, it became a more austere affair.
North Korean leader Kim Jong-un has been seen sporting a different hairdo that has triggered a range of comments and remarks on social network over his new look.
On Sunday, North Korea said it detonated a hydrogen bomb designed for a long-range missile and called its sixth and most powerful nuclear test a "perfect success", sparking world condemnation and promises of tougher US sanctions.
White House officials have been discussing sites as far-flung as Singapore and Mongolia for the planned meeting between Trump and Kim.
North Korean leader Kim Jong-Un's half brother was assassinated with a lethal nerve agent manufactured for chemical warfare and listed by the UN as a weapon of mass destruction, Malaysian police said on Friday.
Whom will North Korean dictator Kim Jong-un kill next, and how?
PM indirectly referred to North Korea's proliferation linkages with Pakistan.
The Winter Olympics sparked to life in a vivid, colourful ceremony of fire and ice in South Korea
The trip was the highest level meeting with a North Korean leader since 2000 when then-Secretary of State Madeleine Albright met Kim Jong-il, the father of the current leader, in Pyongyang.
The photo-op obsessed North Korean dictator has not been seen in public for 37 days
The summit at Sentosa -- the first between the two countries -- is a turnaround of relations between the US president, 71, and the North Korean leader, 34, after a long-running exchange of threats and insults.
South Korean President's office says Kim promised to close N Korea's nuclear test site next month.
North Korea's foreign minister accused President Trump of declaring war against his country.
'Much depends on Moon's persuasive skill to make both Trump and Kim shed some of their rigidity and be flexible to accommodate contrarian viewpoints,' says Dr Rajaram Panda.
KCNA said the new type of surface-to-ship cruise missile is designed to hit 'any enemy group of battleships' that threatened the country.
The massive mushroom cloud over North Korea was due to a planned demolition for a power project, said officials.
US President Barack Obama imposed fresh financial sanctions on North Korea and its senior officials in America's first public retaliation against the "provocative" cyber-attack on Sony Pictures.
The United States, Japan and South Korea have decided to launch a united and strong international response to North Korea's claim of a successful hydrogen bomb test.
After entering the Peace House for the inter-Korean summit, Kim wrote in the guest book 'a new history begins now'.
The Finns started using the unique method of stress relief at the Sochi Games, where they knitted a scarf. Two years later at the Rio Olympics they added to it.
Indian Americans are likely to vote in the United States presidential elections based on what the candidates have done for them and not on the basis of their heritage or race, a newly formed body representing Asian communities has said, claiming that Republican candidate Donald Trump has a better track record than his Democratic rival, Vice President Kamala Harris.
Ahead of the G-20 summit in Osaka this week, Xi has reasserted China's role as a global player, points out Dr Rajaram Panda.
The US needs to find global support, especially from Russia and China, to make North Korea back down, says Claude Smadja.
Trump, who personally greeted the trio at the Andrews Air Force Base, praised Kim for their release ahead of their summit.
Trump had said that North Korea changed its approach towards the summit after Kim had his second meeting with President Xi Jinping in China.
Noting that proliferation of nuclear weapons with links across regions has affected its own security, India on Tuesday asked the international community to pay greater attention to such dangers in the backdrop of North Korean atomic test.
The first meeting was held in Singapore in June.
Faced with allegations that included bribery and violation of sovereignty, Park was accused of colluding with Choi to secure millions of dollars in bribes from the country's biggest enterprises and allowing Choi, a civilian, to interfere in state affairs. Park had apologized, but denied any wrongdoing.
The Russians had appealed their exclusion from the Games by the International Olympic Committee (IOC) over the doping scandal from the 2014 Sochi Games.
Kim Jong-un declared he would never surrender North Korea's nuclear weapons weapons even if his country faced 100 years of sanctions. Dr Rajaram Panda explains Pyongyang's new nuclear doctrine that makes the world a much more dangerous place.
Even as Pakistan continues to urge the international community to accept its membership to the Nuclear Suppliers Group, highly placed sources in the United States who are involved with the tracking of nuclear commerce have claimed that Islamabad is still selling nuclear materials to North Korea.
'Xi Jinping is keen that the second Trump-Kim summit happens soonest.' 'Kim is reported to have told Xi that he expects to achieve a result from a second summit that the international community would welcome,' points out Dr Rajaram Panda.
Former US National Basketball Association star Dennis Rodman arrived in Singapore late on Monday for a summit between US President Donald Trump and North Korean leader Kim Jong Un, saying he was 'excited to be part of it'.
IPO bound HMIL, which is also from South Korea, had faced severe labour unrest for nearly a decade till the realisation -- a worker's union cannot be avoided -- dawned on it.