Topic: Can centralized parties used blockchain to store data (Read 173 times)

Google is doing the right thing by warning people not to use same password for different websites cos they can easily be compromised, I don't see any problem here and I just trust google more on the password side than any other

Still I won't trust any blockchain projects to keep my data because people like me are responsible for running such data platforms, for example look at decentralized finance, they claimed to differentiate themselves from anything centralized and they can't do one thing right 👉 SECURITY

The same reason why you don't open your fridge and stand in front of it to cool yourself off in the summers.
Although it can, but it is not designed for that purpose and it would be the most inefficient usage of the technology.

Although there are some blockchain solution that aimed at storing peoples data, as a sort of wannabe universal digital identity repository (i.e. https://www.ibm.com/blockchain/solutions/identity), they haven’t made a shine as far as I’m aware of. There’s probably terrain there for solutions similar to what digital certificates are, or combined, but that all seems to be below the line for now.

Having your data on a public ledger would need to be properly encrypted (otherwise, what would be the point), but the weak points are still going to be there: APIs and keys used to encrypt/decrypt the data. Any ideal solution should probably play along with trust as a key factor, and based on that, only share anonymized identity data to and fro.

Store your personal information online is always bad. It includes some practices as you store it on your computer, and let your computer online or store your data on companies with Cloud storage services (Google, Dropbox, Drive, etc.) or powerful search engine like Google.
Sounds like the hacker used your gmail to reset password of your Twitter account.

I am also interested in this question. Corporations trade data left and right. Data collection services are overwhelming. And services are built on a distributed system of data storage units. I have monitored the market and selected the most promising of the existing ones.
Big names that have raised millions of money.
https://sia.tech/
https://storj.io/
https://filecoin.io/
https://swarm.ethereum.org/
Promising startups at the product completion stage
https://bankofmemories.org/
https://datum.org/
https://ethernity.cloud/
Those who did not survive the apocalyptic hype
casperproject.io
memority.io
https://sharder.org/

You have got quite a lot of misunderstandings about blockchain, which probably come from all the blockchain hype and marketing. When people say that blockchain can't be hacked, they mean that hackers can't change data on blockchain, but by its nature, blockchain is not the place for storing passwords, because it's public - everyone has access to it, so you won't even need to hack it. Of course you could encrypt them, but it's still a stupid idea to put your encrypted sensitive data for all the world to try and decrypt it.

So, blockchain offers absolutely zero anti-hacking capabilities to things like storing personal data, it's only good for maintaining records, and it's only good if it's decentralized - a private blockchain could still be hacked like any other system with trust.

I just added google because it is not good to save password online, but google can not be blamed in this because they are even the one that helped me by notifying me, I did not have them any blame.

No but I will turn it now from now, thank you for the good suggestion.

Because not everyone want's a decentralized database system. Bitcoin is decentralized and nobody would like to store secret information on a public ledger.


The type of data matters here. In case of bitcoin, the transactions are hashed and stored on the blockchain in a tree like structure.
Information cannot be leaked because it is already publicly open for everybody to verify.
A decentralized blockchain can only be used when users need to verify the credibility of that information.


For storing critical/secret information it is absolutely necessary for the information to be centralized and stored securely.
In case of bitcoin the private keys are stored by the user itself. This makes us in control of the information.
This secret information is not stored on the blockchain. We only use it to broadcast information (transactions) to the blockchain.


Storing it securely by encrypting it and keeping it offline is best way in my knowledge to prevent data leakage.

It is different on your compromise. If the compromise happened directly on Twitter. Hacker changed your Twitter account's password on Twitter, Google has nothing to do and you can not say it is their failure to warn you. Twitter failed to warn you on the compromise instead.

If hacker reset your password in email (I am not sure the process to reset password with Twitter). It is the failure of Google if they did not send you warning that new log in on your gmail with strange IP address.

It is good but did you use 2FA for your Twitter account?

You did good step but it is not enough.

To be safe from online threats or data leaks from companies, the best you can do is Never store your identities, backup details online, on their services. If you did it, I doubt that you can completely clear all traces of your data on their centralized services.

Do you notice that Google docs, sheets, etc. have features for you to check past updates, previous versions and restore it?

Dude this hurts my eyes and my brain, and you need to work more on your english language skills when you are writing long posts like this.
I can't understand anything you wrote except the title question, and yes anyone can store data on blockchain including centralized parties.

Blockchain can be two types- public and private. Bitcoin uses public chain where you can't store data, in fact we store hashes of data. You would first know how blockchain can be tampered. If someone has enough node which can be a sum of 51% power among the overall network, they can attempt to tamper data.
What you are comparing isn’t the actual case. To keep data secure, you have to store it offline, like we say about storing private key of address or wallet file to keep offline.

Why would you store customer's data on a public ledger? You'll literally hand the precious customers information on a silver platter.

There is no way to prevent a database leak using any form of ledger. The most common point of failure is with the companies' security practices. If they cannot reinforce that, there is nothing any decentralized ledger will help whatsoever. Storing files on a distributed system is mainly for it's redundancy, not security.

1. It's expensive and frowned upon. There are actual data storage networks anyway and blockchains like storj.
Internal blockchains may be useful but you only really need a mirror system (RAiD0).
2. Data is publicly accessible on the blockchain, therefore theyd have to encrypt this information before it is stored and what encryption do you use to publicly broadcast secret information so it's not decryptable (the short answer is you don't broadcast it because you can't gaurentee this)?
3. This has nothing to do with companies wanting to be centralised, because they don't. Facebook store information for most worldwide customers in at least 3 different places - although there are areas like Europe where data has to be stored locally so local backups will occur in the same place). 
4. Get better security. Properly encrypt stuff and don't store unnecessary data online (even if it's not pii).

I am now affraid to provide my information to third party because google that is not safe to use warn me about my twitter account password that has been compromised recently, I do not know if this is true but I believe it can not be lie, I changed my twitter account password immediately. I have forgotten that I back up on google, I removed the back up immediately because of what I learn from our forum bitcointalk that it is not also safe to have back up online.


I have read somewhere before about making use of blockchain to store data, I believe the strongest blockchain can be able to do that which is bitcoin blockchain. If blockchain is not hacked and unable to be attacked the data stored will be safe. I was and I am still wondering why third parties are not using blockchain to store customer data because it will be the safest. They use their own centralized data base that are often susceptible to hackers and now our data are no more safe. There are some people that will just be emailed and they will not know that it is from hackers, they will be scammed by that unless they know about such attack.

Why are third parties are not using bitcoin biockchian or blockchain to store customers data?  
If they use it to store customers data, information will not be leaked? Like bitcoin I assumed YES.
Or are the third parties affraid because they want to be always centralized?
What is the remedy to customer data leakage?