Ministry of Health recorded data on blockchain.
The Ministry of Health retrieved all Covid-19 vaccination records. Now the job is to re-establish registration services and issue immunization certificates. The folder gave the information this Sunday (12). The government has entered coronavirus vaccination data into blockchain and so have not been lost.
Last week, the ministry suffered a cyber attack. On Friday (10), according to the folder, the attack “temporarily compromised some folder systems”. This includes, for example, e-SUS Notifica, the National Immunization Program Information System (SI-PNI), ConnectSUS and functionalities such as issuing vaccination certificates.
On that occasion, the government called on the Institutional Security Office (GSI) and the Federal Police (PF) to support the investigations. In addition, the SUS IT Department (Datasus) works on the case.
The hackers left a message saying they had copied and deleted the data. However, the Federal Police confirmed what EterSec, a Brazilian profile of Anonymous, said. According to the profile, there was no ransomware, in which ransoms are requested for stolen data, including cryptocurrencies. But there was a redirection of the Domain Name System (DNS, its acronym in English).
DNS transforms the Internet Protocol (IP) address, which is a sequence of numbers and dots, into the name we type. And this is simpler than a ransomware-type attack.
This is not the first time there have been problems with Health data. Last year there were at least three known for human and systems management failures.