A number of North Korean websites and networks were offline Tuesday after an international hacking group warned of cyberattacks on the North Korea.
On June 17, Anonymous claimed on YouTube it had acquired information about high-ranking officials in North Korea's military and ruling party, which it planned to release through WikiLeaks, an online whistle-blower site, on or around the war anniversary.
Defense Secretary Chuck Hagel delivered the report, titled, “Military and Security Developments Involving the Democratic People’s Republic of Korea 2012,” to Congress May 2, 2013.
In March North Korian cyber army unit attack Skorean banks and many other Internet infrastructure websites.
An international nuclear nonproliferation organization said on Tuesday it has identified what appear to be radioactive materials released more than two months ago by North Korea’s third nuclear test.
Sensors in Japan and Russia detected the xenon 131m and xenon 133 earlier this month, according to the Preparatory Commission for the Comprehensive Test Ban Treaty Organization.
The international hackers group known as "Anonymous" released an additional list of members from pro-North Korean web sites on Sunday in an effort to hold accountable South Korean members who are suspected of aiding the communist state.
Anonymous released the information of over 5-thousand members from three pro-North Korean websites including ryomyong.com , a propaganda site run by North Korea's National Reconciliation Council.
The South Korea Ministry of Science, ICT & Future Planning investigation team found that North Korea used overseas Internet Protocol (IP) addresses to indirectly plant malicious codes in the affected computers in February. (Yonhap)
Computer networks at three local banks Jeju, NongHyup and Shinhan and three TV broadcasters KBS, MBC and YTN were paralyzed on March 20 due to malicious codes from the outside.
The hacking collective Anonymous has said it has been hacking Uriminzokkiri news website and Twitter and Flickr accounts of North Korea.
Anonymous also claimed to have accessed 15,000 usernames and passwords from a university database.Urminzokkiri's Twitter feed started displaying messages reading "hacked" at around 0700 BST. The account's avatar was changed to a picture of two people dancing, with the words "Tango down".
Anonymous Korea released on Saturday its second list of members registered with a North Korean propaganda Web site.
Through its account on Twitter (@YourAnonNewsKR), the group, which calls itself "Anonymous Korea," released the personal information of 6,216 members registered on Uriminzokkiri, a North Korean propaganda Web site.
The information includes users' names, genders, e-mails, birthdays and nationalities. It marked the second time the hacking group released a list of members, after saying earlier this week that they hacked into the Web site.
South Korea's defense ministry had earlier said it plans to gradually increase the size of Cyber Command to over 1,000 people.
The South Korean military launched the Cyber Command in early 2010 to handle cyber security issues along with different military and intelligence organizations, but there is no control tower to integrate the policies and strategies that defend military networks.
Hackers aligned with Anonymous claim to be carrying out numerous cyberattacks against North Korean websites, urging North Korean citizens to rise up against their "oppressive" government.
Hackers also claim to have seized more than 15,000 passwords belonging to accounts on Uriminzokkiri.com, an outward-facing North Korean website hosted on China-based servers.