The National Cyber Security Center said it has discovered and foiled a number of attempted cyberattacks on Vietnamese government portals by the China-linked Cycldek hacker group.
It said the advanced persistent threat (APT) hacker group is also known as Goblin Panda, Hellsing, APT27, and 1937CN.
The Department of Information Security joined hands with Internet service providers to block multiple attacks in March after receiving information from the center that Cycldek was trying to penetrate computer systems in Vietnam, Thailand and Central Asian countries.
After identifying the evasion techniques the hacker group used, the NCSC contacted eight Internet service providers in Vietnam and told them to block all the IPs and domains it sent in a list to prevent cyberattacks.
Cycldek is a dangerous hacker group that usually targets the defense, energy and government sectors in Southeast Asia, especially Vietnam and Laos. It has carried out many attacks on Vietnam.
According to the NCSC, there have been attacks on Vietnam in the first quarter by hackers groups backed by great resources to target political and economic entities.