1- By being an information verified by a bunch of nodes on the network no one can’t break it or change it because if is not on the whole network it doesn’t exist.
2- Because they can alter or sell the data or even block you from accessing if that’s their willing.
Every computer in the network needs to agree or come o a consensus before new information or value is added. The informaton is open anc can be checked by everyone. All of this increases the security of our sensitive informations.And alsoe immutability when a transacron goes trough it cant disapear.
it has no central authority that can manipulate transactions and it is trustless and verifiable.
It is dangerous to trust a central authority for security because of corruption and risk of fraud.
A1. Many parties check and verify the system, you are not depending on any one single body to dictate the ‘truth’
Decentralized networks use something like Proof of Work, which penalises ‘Bad’ actors trying to cheat the system but rewards the ‘Good actors’, it also ensures immutability of the system.
A2. You have to trust that authority, bear in mind that they can then dictate how the system works.
(1&2) A decentralized network spreads out the valuable information storing among all of the contributing nodes in the system. To be able for a hacker to steal any value on the blockchains decentralized network, it would need to overtake 51% of the entire network, for the hacker to be able to (falsely) reach consensus on the network. Considering the amount of nodes on for instance Bitcoins network today, that would be very much impossible. Doing the same thing to a centralized database would leave the hacker with many more options and time to manipulate the system since only one central network would need to be exposed. Would you rather go to steal one chest containing all the gold from a pirate ship or millions of chests containing fractions of the gold from several pirate armies? - yes there is the comparison.
Also, the network is secure thanks to the computing power, this computing power is globally incentivized to upgrade constantly its hardware. A central database will most probably not keep up with the constantly evolving computing power as fast as a decentralized global network.
By having every transaction verified, by coming to a consensus - no one person can manipulate or modify the transactions on the network.
Because you have to trust a 3rd party with the information. Decentralised is trustless.
A decentralized network increases security because you are trusting the protocol to verify with math. Not a central authority who could sensor or change data.
Trusting a central authority is dangerous because they can change the data. They could be hacked. Their system could go down and you’d no longer have access.
How does a decentralized network increase security?
A decentralized network increases security by having a consensus that keeps it secure,also the math and protocol makes it so no data can removed everything is transparent.
Why is it dangerous to trust a central authority for security?
It is dangerous to trust a centralized authority for security because in any centralized database the highest ranked representative can rule a change if he/she feels to do so. also can be hacked.
A decentralized network increases security by eliminating reliance on third parties. Instead, a decentralized network relies on the immutable laws of mathematics which cannot be manipulated.
A central authority can lie, steal, and cheat, or be susceptible error.
By having a trust-less network of computer from all over the world storing the information. Makes it less unlikely for the information to be change be one or a group without consensus from the other computers. This method makes it safe and secure.
They can be hacked or information can be changed by the central authority. In most cases they pay less effort on security, but more on making profits with your information.
A decentralised network offers security on a global scale, there are no intermediaries and you can trust in the maths and protocol. It cannot be hacked and there is no one to bribe.
A centralised system is controlled by governments, companies and organisations they cannot be trusted to secure our data, this system is not adequate enough to protect sensitive information. There have been so many hacks where clients names, addresses, bank details have been compromised.
A decentralized network increases security because it is not susceptible to a single point of failure.
It is dangerous to trust a central authority for security because of hacking and malicious intentions by the trusted authority.
You’re not trusting the organization, you’re trusting the network by using math and protocol.
You are basically trusting a 3rd party so there’s no accountability.
2.Why is it dangerous to trust a central authority for security?
Because you are trusting a centralized organisation that aims to serve itself primarily.
Hello,
A decentralized network has no central point of failure. A server can be hacked, or the owner of the server can decide to do something illegal, but if the data exists at the same time on different nodes then tampering becomes harder.
The central authority as previously stated might go rogue or get hacked. A central authority might decide to delegate the management of the database to another company. Furthermore, I must take the word of the central authority that it keeps good standards, but with blockchain technology, being public, allows me to check.
Best