North Korea has conducted another test of a nuclear-capable underwater attack drone, according to state media. The country tested the so-called Haeil-2 more than a week after it disclosed a new underwater drone system dubbed Haeil-1, which translates to "tsunami" in Korean, and is designed to undertake sneak attacks in enemy waters. Analysts are sceptical about whether the underwater vehicle is ready for deployment but say North Korea is eager to display its diverse weaponry against the United States and South Korea, which have been conducting large-scale military exercises in recent weeks. The latest test took place from April 4 to April 7, state media KCNA reported on Saturday. "The underwater nuclear attack drone Haeil-2 … cruised 1,000km [621 miles] of simulated underwater distance," the agency said, adding that the test warhead was also detonated.

In Figure 2, we show the adaptive binning calibration curve for crowd forecasts on all resolved true/false questions by plotting the fraction of positives against the model's predicted probability for the positive class. Additionally, we can compare the calibration of our static and temporal models to crowd performance on the resolved test set. Treating true/false questions as two-class classification problems and combining them with multiple-choice questions, we calculate adaptive binning calibration error with a bin size of 50 samples. By leveraging crowd predictions in our FiD Temporal models, we reduce the calibration error to 17%, showing potential for improvements. The FiD Temporal model uses three separate linear heads after its hidden state outputs to answer each type of questions (true/false, multiple-choice, and numerical). In particular, the multiple-choice head has 12 outputs which is the maximum number of choices in the training set.

SEOUL – North Korea has tested a new nuclear-capable underwater attack drone that can generate a radioactive tsunami, state media reported on Friday, as it blamed joint military drills by South Korea and the U.S. for raising tensions in the region. During the drill, the new North Korean drone cruised underwater at a depth of 80 to 150 meters for over 59 hours and detonated in waters off its east coast on Thursday, North Korean state news agency KCNA said. Dubbed Haeil, or tsunami, the drone system is intended to make sneak attacks in enemy waters and destroy naval striker groups and major operational ports by making a superscale radioactive wave through an underwater explosion, the KCNA said. This could be due to a conflict with your ad-blocking or security software. Please add japantimes.co.jp and piano.io to your list of allowed sites.

North Korea has tested a new underwater nuclear-capable attack drone designed to unleash a "radioactive tsunami" that would destroy enemy naval vessels and ports, state media has reported. During a military exercise conducted this week under the guidance of the country's leader Kim Jong Un, North Korea's military deployed and test-fired the new weapons system, the mission of which was to test the ability to set off a "super-scale" destructive blast and wave, the country's state news agency KCNA said on Friday. "This nuclear underwater attack drone can be deployed at any coast and port or towed by a surface ship for operation," KCNA said. The news agency said that during the exercise, the drone was put in the water off South Hamgyong province on Tuesday and cruised underwater for 59 hours and 12 minutes, at a depth of some 80 to 150 metres (260 to 490 feet), before detonating in waters off its east coast on Thursday. KCNA did not elaborate on the drone's nuclear capabilities.

Gen. Pat Ryder told reporters Thursday that deterrence of North Korea "continues to work," hours after the Kim regime launched another intercontinental ballistic missile. North Korea claimed on Friday morning that it tested a "nuclear underwater attack drone" this week amid joint U.S. and South Korean military drills, according to state media outlet Korean Central News Agency. The new underwater weapon is designed to "stealthily infiltrate into operational waters" and target naval striker groups and enemy ports, North Korea claimed. "This nuclear underwater attack drone can be deployed at any coast and port or towed by a surface ship for operation," KCNA said in a statement. A test warhead exploded in the waters off Hongwon Bay on Thursday afternoon, North Korea claimed.

North Korea and South Korea violated the armistice that governs their shared border by sending drones into each other's airspace in December, the US-led United Nations Command says. Five North Korean drones crossed into the South on December 26, prompting South Korea's military to scramble fighter jets and helicopters as well as send surveillance aircraft into the North to photograph its military installations. The UN Command, which has helped oversee the Demilitarized Zone (DMZ) between the two Koreas since an armistice ended fighting in the 1950-1953 Korean War, said on Thursday that it had conducted a special investigation of the airspace incursions to determine whether there were any violations of the ceasefire. The drone incursions by the two countries constituted violations, but South Korea's efforts to shoot down the drones in its airspace did not violate the armistice, the UN Command said in a statement. Seoul and Pyongyang remain technically at war because no permanent peace treaty has ever been reached to end the Korean War.

Check out all the on-demand sessions from the Intelligent Security Summit here. Weaponizing artificial intelligence (AI) to attack understaffed enterprises that lack AI and machine learning (ML) expertise is giving bad actors the edge in the ongoing AI cyberwar. Innovating at faster speeds than the most efficient enterprise, capable of recruiting talent to create new malware and test attack techniques, and using AI to alter attack strategies in real time, threat actors have a significant advantage over most enterprises. "AI is already being used by criminals to overcome some of the world's cybersecurity measures," warns Johan Gerber, executive vice president of security and cyber innovation at MasterCard. "But AI has to be part of our future, of how we attack and address cybersecurity."

Former Assistant Secretary of State Robert Charles joined'Fox & Friends First' to discuss the surge of COVID cases in China and Kim Jong Un vowing to bolster North Korea's nuclear weapons. Chinese drones were operating near Japan this week, prompting Japanese defense officials to dispatch aircraft and naval ships to monitor the situation, according to media reports. The unmanned aerial vehicles (UAVs) have been transiting the Miyako Strait from the East China Sea into the Pacific and returning the same way, USNI News reported. The Miyako Strait is a waterway between Miyako Island and Okinawa. Meanwhile, Chinese warships were also seen in the East China Sea after two weeks near the Philippines.

Lt. Gen. Keith Kellogg weighs in on North Korea's long-range ballistic missile launch and China's belligerence toward Taiwan on'Your World.' North Korean leader Kim Jong Un set new goals for the country's military at the Sixth Enlarged Plenary Meeting of the party's 8th Central Committee as tensions continue to escalate on the Korean Peninsula. Kim told party leaders that North Korea faces a "newly created challenging situation" on the Korean Peninsula and set the direction for the "anti-enemy struggle," the country's state media reported Wednesday, according to Reuters. "He specified the principles of foreign affairs and the direction of the struggle against the enemy that our party and government must thoroughly abide by in order to protect sovereign rights and defend national interests," the KCNA news agency said in the report. North Korean leader Kim Jong Un attends a politburo meeting of the ruling Workers' Party of Korea in Pyongyang, North Korea. To accomplish those goals, KCNA said Kim called for a "strengthening self-defensive capabilities to be strongly pursued in 2023," though the report did not offer specific details on what the increased military build up would look like. The dictator's remarks come amid rising tensions between the isolated country and its neighbors South Korea and Japan, which have both pushed for a stronger military in response to an unprecedented amount of missile tests conducted by North Korea.

North Korean drones entered South Korean airspace on Monday for the first time since 2017 in the latest example of escalating tensions between the neighbouring countries. The South's military was caught off guard, drawing criticism on Tuesday from President Yoon Suk-yeol, who sought to assuage concerns by announcing his cabinet would fast-track plans for a special drone unit. South Korea's military fired warning shots and some 100 rounds from a helicopter equipped with a machine gun but failed to bring down any of the drones. The military said it chased one of the five drones over the greater Seoul area but did not fully aggressively engage with it out of concern for civilian safety. A defence ministry official confirmed a South Korean KA-1 fighter jet was involved in an accident while flying to counter North Korea's drones after departing its Wonju base in the country's north.