Since the Covid-19 pandemic, businesses and organizations have gradually moved their activities into cyberspace, while the number of cyberattacks has been increasing.

A report found that the number of phishing attacks worldwide has increased by 667 percent.

As businesses have to open their systems to serve work from home, this gives favorable conditions to hackers to find passwords to break into the information systems of institutions and enterprises. That is why the number of attacks of this type increased by 400 percent over last year.

One out of every three cyberattacks has relations with Covid-19, and 20 percent of data leaks occurred during that time.

These are fake messages. When users click the links, the websites with interfaces similar to the real websites of banks and financial institutions will appear and after users enter their personal information (account, password and OTP), they will be hijacked and lose money.

Le Quang Ha, Deputy CEO of Viettel Cyber Security, said the company’s monitoring system found that Vietnamese internet users recently noticed the appearance of messages about lucky draw programs, or they were told to log in accounts to receive or transfer kieu hoi (overseas remittance).

In 2021, the number of phishing cases of this type discovered by the system increased by three times compared with 2020. As many as 2,739 phishing websites and 2,717 fake websites have been found. The websites target specific subjects, including finance and banking institutions, law enforcement agencies and media firms, to trick them out of assets.

Experts said the tricks scammers use for cyberattacks tend to be more sophisticated these days. Previously, they just used simple messages sent via Messenger app, while they recently used specialized devices to spread fake news.

The attacks with malware are also on a sharp rise. This is because businesses’ information systems have many vulnerabilities. Therefore, hackers have opportunities to scan and break into systems, encrypt data and blackmail.

According to Viettel Cyber Security, the most infected malicious codes in 2021 were Necurs Botnet, Ditminer Miners, Lethic Botnet, Mirai Botnet, Android Hummer Trojan, Sality Botnet, WannaCry Ransomware and Dark Silent Android Trojan.

The major reason behind the malware infection is the users’ habits. They’re curious and open attached files from unfamiliar emails, use cracked software and unlicensed software, and use USB to exchange data.

There are five groups of hackers which often organize APT attacks to Vietnam, namely Goblin Panda, Mustang Panda, Lazarus, Winnit and APT 32. These hacker groups havr different purposes, including economic and political. 

Trong Dat

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