Vietnam 's leading internet security firm, BKAV, is calling for concerted efforts to fight online attacks on Vietnamese websites.

In the past fortnight, several Vietnamese online newspapers such as vietnamnet.vn, dantri.com.vn and tuoitre.vn have been denied distribution services after attacks known as Distributed Denial of Service (DDoS).

BKAV's director of network security, Nguyen Minh Duc, said during one of the attacks, hackers controlled a large number of computers to access a website at the same time, causing the network bandwidth to overload.

"Solving this problem quickly or over time depends on individual computer systems. On average, a website can transfer 1GB data per one second," Duc said.

"However, when a site is attacked, this capacity can reach up to 10GB data per second, which simply overloads the system."

Duc said affected newspapers did not seem to be aware of the need for technical support from outside, adding that both Vietnam 's Computer Emergency Response Teams (VNCERT) and BKAV had not received any requests for help from the newspapers so far.

More than half of local agencies, organisations and enterprises do not have their own information security staff.

Another 24 percent have to hire professional service providers to enhance information security.

A report produced by VNCERT unveiled high demand for information security training in Vietnam .

According to the survey, more than 83 percent of State agencies want information-security training. Sixty percent said information security personnel must possess professional certificates.

VNCERT is joining hands with the Vietnam Information Security Association (VNISA) to map out a framework for information security training.

In March, the Post and Telecom Institute of Technology (PTIT), became the first educational institution in Vietnam to have an information security faculty. This year, 150 students will be enrolled in the new faculty, most of them high school and college graduates.

According to the Ministry of Information and Communications, Vietnam will need about 1 million IT experts by 2020.-VNA