Hanoi-based security software and electronics company Bkav announced on Wednesday that Vietnamese users lost some VND21.2 trillion (US$901 million) in 2022 due to computer viruses.
The proliferation of computers infected with data encryption malware and advanced persistent threat (APT) malware were the main cause of the huge damage.
Hackers focused on detecting servers with weak passwords, thereby getting remote access to manually install data encryption malware.
Some 525,000 server computers with weak passwords have been attacked in Vietnam this year.
The total number of APT-infected computers recorded this year also reached 180,000, with emails being the main transmission route.
This year also witnessed the rise of ransomware affecting more than 14,500 computers, while last year’s figure was only 1,000.
Dangerously, a ransomware attack targeting accounting data has penetrated 1,355 servers since April and is still ongoing.
A survey conducted by Bkav also showed that 40 percent of Vietnamese users do not back up data or do it incorrectly, leaving them vulnerable to ransomware attacks.
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