Ransomware Attacks Hit Vietnam Hard with Over $10 Million in Losses

Rising Wave of Cyber Threats

Vietnam faced one of its toughest cybersecurity challenges in the first half of 2025. Reports show that the country lost more than $10 million due to ransomware attacks. These are attacks where hackers lock important data and demand money to release it.

The damage did not stop at just money. Hackers encrypted more than 3 terabytes of data, a 15% rise compared to the same time last year. This made Vietnam one of the top 10 countries worldwide most affected by cyberattacks in early 2025.

Cybersecurity experts recorded that Vietnam suffered 155 million leaked data records and 4.5 million compromised accounts. This accounted for 12.6% of all global breaches and was 21.4% higher than in 2024. These numbers show how fast and serious the threat has become.

The average cost of each ransomware attack in Vietnam stood at $1.85 million. While this is slightly lower than the global average of $2 million, the overall losses were still severe.

Cybersecurity reports also point out that the number of ransomware groups targeting Vietnam has increased sharply. Many of these groups operate like professional businesses. They create special malware, rent it out to smaller gangs, and share profits. This “cybercrime as a service” model has made attacks more frequent and harder to stop.

Key Sectors Under Attack

The most targeted sectors were finance, banking, telecommunications, technology, and public services. These industries hold massive amounts of sensitive data. For hackers, they are prime targets because locking their systems can cause widespread damage to businesses and the public.

Cybercriminals did not limit their activities to companies. They also attacked critical national infrastructure. These included banks, financial institutions, government agencies, and even media and press systems. Such strikes disrupt services that people use every day and make recovery even harder.

The financial sector has been hit especially hard because of the trust people place in banks. Telecommunications systems were another major target. Hackers disrupted internet and mobile networks, which affected both personal communication and business operations.

How Cyber Attacks on Industrial Control Systems Can Endanger Lives ?

Large organizations were particularly vulnerable. Their systems are often more complex, and this gives ransomware groups more chances to sneak in and cause damage. The risk was especially high in sectors like healthcare and technology, where data is both sensitive and valuable.

How Hackers Gained Access

More than 70% of cyberattacks on organizations in Vietnam used compromised system accounts. Hackers stole these accounts in several ways. One method was brute-force attacks, where hackers try endless combinations of passwords until they break in. Another method used malware designed to steal login details directly from users. In some cases, attackers broke into systems and stole sensitive information before locking it away.

Once hackers gained access, they could spread through systems quickly. They encrypted important files, shut down operations, and demanded high ransoms. The stolen information also risked being leaked online, adding even more pressure on organizations to pay.

Colt continues forensic review after ransomware attack hits customer-facing systems

Experts note that many victims in Vietnam paid the ransom because they had no backup or recovery plan. Without access to their own data, businesses were forced to negotiate with criminals. Paying, however, did not always guarantee that data would be returned safely. In some cases, hackers demanded additional payments or leaked stolen files anyway.

The sheer scale of these attacks in early 2025 shows the growing danger Vietnam faces from cybercrime. With millions of records stolen and major industries affected, ransomware has become one of the most damaging threats to businesses and national security alike.

Renuka Bangale
Renuka Bangale
Renuka is a distinguished Chartered Accountant and a Certified Digital Threats Analyst from Riskpro, renowned for her expertise in cybersecurity. With a deep understanding of cybercrimes, malware, cyber warfare, and espionage, she has established herself as an authority in the field. Renuka combines her financial acumen with advanced knowledge of digital threats to provide unparalleled insights into the evolving landscape of information security. Her analytical prowess enables her to dissect complex cyber incidents, offering clarity on risks and mitigation strategies. As a key contributor to Newsinterpretation’s information security category, Renuka delivers authoritative articles that educate and inform readers about emerging threats and best practices.

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