Homework on Security & Immutability - Questions

Blockchain and Bitcoin 101
#281

  1. A decentralized network increases security by being transparent and not having a single point of failure, which means that even if a node is down for some reason the others will continue.

  2. It is dangerous to trust a central authority for security because this authority or company could have its own agenda and be motivated only by profits. As well, this system can be hacked or have mistakes in it, which could go unnoticed for some time.

#282

  1. You don’t have a single point of failure because the data is distributed over a number of nodes.

  2. You have a single point of failure, and the central authority itself can expose you.

#283

Nodes verify don’t trust verify

1 Like
#284

  1. In decentralized network, operators are incentivized to work together for reward. This combined with mathematical protocol and consensus makes network secure.

  2. Data is in the hands of someone who decides what to do with it or gets leaked into the internet and won’t get reported until later. Data is new oil. It is used many ways to monetize you and your digital footprint.

#285
  1. How does a decentralized network increase security?
    You don’t need to trust one central authority. After nodes reach consensus the information will stored. Nodes are incentified to tell the truth.
  2. Why is it dangerous to trust a central authority for security?
    You don’t know what they do with your data. Probably they get money to sell your data.
#286

  1. How does a decentralized network increase security?
    System is not built on trust. All trx are verified.

  2. Why is it dangerous to trust a central authority for security?
    It can be manipulated.

#287
  1. How does a decentralized network increase security?
  • A decentralized network increases security by requiring a transaction to be verified by multiple nodes before it is executed. A decentralized network does not rely on the arbitrary enforcement provided by any one individual.
  1. Why is it dangerous to trust a central authority for security?
  • It is dangerous to trust a central authority because individuals are motivated to make money, and being a centralized authority allows one to make unlimited money based on the misgiven trust of other individuals.
  • The prime example would be the central bank which is now printing unlimited amounts of money.
#288

  1. It increases security because it uses a blockchain and the nodes can verify transactions and a transaction cannot be removed and it’s decentralised, it’s also like an audit in real time.

  2. Because you could always alter a transaction, making it easy to manipulate the system.

#289
  1. How does a decentralized network increase security?
  • A decentralized network increases security by requiring a transaction to be verified by multiple nodes before it is executed. A decentralized network does not rely on the arbitrary enforcement provided by any one individual.
  1. Why is it dangerous to trust a central authority for security?
  • It is dangerous to trust a central authority because individuals are motivated to make money, and being a centralized authority allows one to make unlimited money based on the misgiven trust of other individuals.
  • The prime example would be the central bank which is now printing unlimited amounts of money.
#290

  1. Decentralized network increase security because theres no central authority and verifiable, it help secure the network by storing data that will be more difficult for hackers.

  2. It dangerous to trust central authority for security because data can be corrupted,changed or lost.

#291

1&2. A decentralized network increase security by multiple verification protocols. The danger in trusting a centralized authority is the risk of corruption, an attack, or some defect that could jeopardize the central authority.

#292

  1. A decentralized network allows many entities (nodes) to verify transactions which increases security compared to one single network saying it is doing what it says it is doing (which can be in turn false).

  2. A central authority is allowing one single source to determine action. This is also making the network more vulnerable because it is not backed up and not spread over a larger network of multiple nodes.

#293

How does a decentralized network increase security?

Being a distributed network where everyone in the network has the same information, there is no central point of failure. You are not trusting an Organization you are trusting a Network. In a Decentralized Network transactions can only be added and not removed. Once verified, this is the immutability in the Network. All Nodes verify transactions and by doing so authenticate the Network.

Why is it dangerous to trust a central authority for security?

With a Central Authority you are not in control of your assets. Your Assets can be coerced, manipulated, stolen, withheld. Also as a centralized entity it is easier to hack the system verses a distributed decentralized system. ( single point of failure).

#294

  1. Because in that way there is no one person or group that can very easily overcome security.

  2. Because the people that are behind the central authority can decide to do what ever they want.

#295

[quote=“ivan, post:1, topic:8427”]

  • How does a decentralized network increase security?
  • A decentralized network increases security by not introducing a single point of failure or introducing a large reward in a single place to draw the attention of hackers or thieves (a honey pot). Additionally, it is a system where no 3rd party need be trusted. The network is a trust less system based on math and protocol. It is immutable. It is not subject to human emotion or desires.
  • Why is it dangerous to trust a central authority for security?
  • A Central Authority may have a different agenda. May choose to deny access at the Authorities discretion. May choose to modify the data to suit varying interests. May have lax or non-existent security protocols to protect the data.
#296
  1. There is no single point of failure.
  2. It can be hacked and easily generate a mess.
#297
  1. Security is increased in a decentralised network due to operational transparency and transactional immutability. This is enforced through participant consensus that operates through math and protocol, to produce an informational structure that can’t be manipulated by any one party.
  2. It is dangerous to trust a central authority because decisions about the way information is used, manipulated, accessed and processed can be determined by a limited set of agents. This structure is often not very transparent, and for that reason less secure.
#298
  1. A decentralized network increases security through math and protocol that acts on a global level.
  2. It is dangerous to trust a central authority for security because it can be broken, bribed or hacked.
#299

How does a decentralized network increase security?
By having the same database saved, updateted and synced by many nodes spread in a decentralized
network makes it not have a single point of failure and cant be manipulated by a central
authority.

Why is it dangerous to trust a central authority for security?
Single point of failure and manipulation by or to the authority in control are some
weak-points that dont do well for trust in security.

#300
  1. How does a decentralized network increase security?

It is an open borderless database on which everybody can build on it in one language and check everything without Intermediaries. So because of the maths and protocol that it is build on, it is high trusted for not beeing hacked or compromised by any third party.

  1. Why is it dangerous to trust a central authority for security?

You can’t be 100% sure that the central authority wants the common good for everybody and can’t be sure that one person is trustworthy. Plus a central authority is not immutable, trackable and most of the times is centered in one place so vulnarable for hack attacks.