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Fonte: iapp

Versão traduzida: via Google Tradutor

Those who have heard of “blockchain” technology generally know it as the underpinning of the Bitcoin virtual currency, but there are myriad organizations planning different kinds of applications for it: executing contracts, modernizing land registries, even providing new systems for identity management.

There’s one huge problem on the horizon, though: European privacy law.

The bloc’s General Data Protection law, which will come into effect in a few months’ time, says people must be able to demand that their personal data is rectified or deleted under many circumstances. A blockchain is essentially a growing, shared record of past activity that’s distributed across many computers, and the whole point is that this chain of transactions (or other fragments of information) is in practice unchangeable – this is what ensures the reliability of the information stored in the blockchain.

For blockchain projects that involve the storage of personal data, these two facts do not mix well. And with sanctions for flouting the GDPR including fines of up to €20 million or 4 percent of global revenues, many businesses may find the ultra-buzzy blockchain trend a lot less palatable than they first thought.

“[The GDPR] is agnostic about which specific technology is used for the processing, but it introduces a mandatory obligation for data controllers to apply the principle of ‘data protection by design’,” said Jan Philipp Albrecht, the member of the European Parliament who shepherded the GDPR through the legislative process. “This means for example that the data subject’s rights can be easily exercised, including the right to deletion of data when it is no longer needed.

“This is where blockchain applications will run into problems and will probably not be GDPR compliant.” — Jan Philipp Albrecht, MEP

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