White House homeland security adviser Thomas Bossert said Monday that investigators were still working to determine who was behind the attack, which infects computers with a virus that encrypted data and is accompanied by a demand that victims pay a ransom to decrypt it. He said based on his conversations with North Korean hackers, the reclusive state had been developing and testing ransomware programmes since August.
China's banking regulator said on Wednesday it will strengthen cyber security protection at banks to prevent "disruptive systemic risk events" after the global WannaCry "ransomware" attack infected more than 300,000 computers in 150 countries. Early Tuesday, the Shadow Brokers, the hacking group that spread the tool and is not believed to be linked with North Korea, threatened in an online post to start a "Data Dump of the Month" club, in which it would release more NSA hacking methods to paying subscribers.
The connection was made by Google security researcher Neel Mehta, who pointed out similarities between WannaCry and malware used by Lazarus, the group that has been blamed for the Sony Pictures hack of 2014 and for stealing millions of dollars from a Bangladeshi bank in 2016.
"The Lazurus Group" is a hacker collective with ties to North Korea and Symantec discovered portions of its malware codes in "WannaCry", the hacking program used in last weekend's cyber attack.
Some eight to 10 US entities, including a few in the health-care sector, reported possible WannaCry infections to the Department of Homeland Security, a USA official said. Most of the funds have not been recovered.
North Korean leader Kim Jong-un attended the launch site of the new ground-to-ground medium long-range strategic ballistic missile, the Hwasong-12, on Sunday.
While North Korean hackers have for years operated out of China, defectors and South Korean officials say they have been spreading to Southeast Asian countries, where government monitoring is less intense.
As he chaired a meeting on North Korea at the Security Council on April 28, U.S. Secretary of State Rex Tillerson called for "a new approach" and "increased diplomatic and economic pressures" on North Korea. US officials blamed both hacks on North Korea.
Imran Khan pays tribute to Misbah and Younis for 'retiring with grace'
That effort put him into the record books for the most catches ever by a Pakistani fielder in a Test series. Earlier, Shah raised Pakistan's hopes of dismissing the West Indies cheaply despite the placid pitch.
They were also trained in foreign languages so that they could operate overseas.
The Workers' Party and the Korean People's Army are believed to run their own hacking operations, creating competition.
North Korea has denied it was behind the hack.
If the North Korean hackers were responsible for the disruptions suffered by Chinese computer users, that would constitute an extraordinary assault on North Korea's most important neighbor.
While the attacks have raised global cyber security concerns, security firms are benefiting from the cyber threat as computer networks look for better cover.
South Korea's Ministry of Foreign Affairs on Tuesday lauded the adoption of a "quick and stern" joint statement by the members of the UN Security Council, including China and Russian Federation, against Pyongyang's latest ballistic missile launch, which came days after South Korea's election of President Moon Jae-in on May 9.
"The similar could be true here - that this stuff leaked out from North Korea, but it just hasn't been found yet", he said.
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