Computer viruses caused a loss of 8.7 trillion VND (400 million USD) in Viet Nam last year compared to 8.5 trillion VND in 2014, the BKAV Technology Group revealed in its latest network security survey released last month.

Illustrative image (Source: VNA)

Nearly 63,000 new viruses appeared last year, infecting 61.7 million computers.

The losses caused by computer viruses are calculated based on users' incomes and their computers' downtime.

On average, a computer user in Viet Nam lost 1.25 million VND (55 USD) and nearly 7 million computers were seriously affected, the survey said.

USBs were the worst hit resource, with 83 percent of survey participants saying their USBs were infected at least once last year compared to 85 percent in 2014.

Over 9.1 million computers were infected by viruses through USB, the most common being the W32 UsbFakeDrive virus.

Half the respondents complained about getting spam messages every day, a rise in numbers despite efforts to crack down by the Government and mobile service providers.

(Source: VNA)