Facebook founder and CEO Mark Zuckerberg said that distributed ledger technology could allow Internet users to access various services using a single account. The blockchain-based solution can become a competitor of the single sign-on (SSO) technology from Facebook.
A use of blockchain that I’ve been thinking about … though I haven’t figured out a way to make this work out, is around authentication and… granting access to your information to different services. So, replacing the notion of what we have with Facebook Connect with something that is truly distributed. Basically, you take your information, you store it on some decentralized system and you have the choice to log into places without going through an intermediary.
Such a solution will allow Internet users to refuse intermediaries when using credentials to interact with various services. In addition, intermediary corporations will lose the ability to cut traffic.
Nevertheless, he stressed that in the case of the scandal with Cambridge Analytica and data leakage, Facebook was able to block unscrupulous developers from accessing personal data of users, and in the case where the latter can manage their data themselves, it will be impossible.
Zuckerberg added that society needs to answer the question whether it is ready to take full responsibility for its data, because in the case of malicious acts there will be no intermediary who can be held accountable.
He also confirmed that the amount of computation that Facebook is producing will be extremely difficult to decentralize.