Data Security: 20 Million Records Stolen in Vietnam National Immunisation System Hack

This, among other recent cyber incidents, provides an interesting backdrop to plans approved last month to develop a national cloud platform to replace foreign cloud services.

Police in Lam Dong Province have launched an investigation into a 16-year-old student accused of hacking Vietnam’s National Immunisation Information System, VN Express has reported.

Investigators allege the student stole 20 million personal records, which were then sold for more than VND 100 million (US$3,795).

This comes just days after it was reported that Vietnam-linked hacker group OceanLotus had targeted domestic organisations and investors in campaigns running from 2024 to 2026, according to a report from cybersecurity firm ESET.

One campaign involved a prolonged cyber espionage operation against an unnamed Vietnamese infrastructure and transport construction company, with the second exploiting the stock trading app FireAnt Metakit, delivering malicious software through the application’s update process between October 2025 and March 2026.

On a side note, where ESET said it had tried to notify FireAnt multiple times, it says it never received a response.

Together, these incidents provide an interesting backdrop to plans approved last month to develop a national cloud platform to replace foreign cloud services.

The initiative is intended to support national data sovereignty, reduce risks of state data leaks, and create centralised infrastructure for digital government and the digital economy, according to local reporting.

Sovereignty, however, does not necessarily mean security.

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