Find out how the Health Data System assisted the Palestinian Police in investigations of fraud in vaccine records | The National Gazette

in the national data network for Ministry of Health-No record can be deleted without leaving a trace. Everything is registered. This helped a lot Federal Police in investigations.

All Brazilians vaccinated against Covid received a receipt containing data such as dose, date, manufacturer, batch, mail and the professional who applied.

🔗 What makes this network secure is that it uses a technology called blockchain – which means block chain.

⛓️ Each block is a collection of information. The blocks are linked together and transmitted together to the network. Information with layers of protection against tampering, manipulation, modification and deletion.

If the health mail agent puts some incorrect data on the card, for example, it can include the information that an error occurred. The information will then be discarded, but it does not disappear from the system, precisely because of the technology. blockchain.

“There is no way you can delete them, and hide with them. If by chance there is an error, there is no way to erase it. What you can do is insert a new record to notify those who will look at the system that there was an error in the previous record. But delete it, there is no way,” explains my specialist Technology Ronaldo Lemos.

Changes leave traces.

“If I come here and change the information in a block—if you try, say, to hack it—it changes its color; it stops being green, it turns red. And that invalidates all the blocks that come after that.” Then, These blocks, right off the bat, indicate that something has changed. Most importantly, there are infinite copies of the entire blockchain. It is registered on a million, two million computers – the same information. So even if a malicious person comes here and changes the information of one chain of blocks – if you look at the other chains, the original information is still there”, Ronaldo Lemos explains.