Types of blockchain networks

Public blockchain networks

Private blockchain networks

Permissioned blockchain networks
Businesses who set up a private blockchain will generally set up a permission-based blockchain network. It is important to note that public blockchain networks can also be a permission. This places restrictions on who is allowed to participate in the network, and only in certain transactions. Participants need to obtain an invitation or permission to join.

Consortium blockchains

What is Block-Chain technology?


Key elements of Blockchain:





What is Encryption?

Encryption is the encoding of a message so that only the intended addressee can decode it. Encryption software turns your message into an indecipherable sequence called ciphertext. Even if someone gets hold of your message, they won’t be able to access the encrypted data unless they have the key. Military-grade encryption is virtually impossible to crack as it uses 256-bit keys that generate 2^256 possible combinations. There are no supercomputers yet that can crack such a key within a reasonable amount of time.

What is End to End encryption?

End to end encryption (E2EE) encrypts your message throughout its whole journey between two end-points. It stays encrypted while traveling through intermediate servers and neither the service provider, nor your ISP or any third party can access it.

Without E2EE, your message is encrypted once it reaches a mid-point server that decrypts it. Thus, an entity controlling these servers (e.g. an ISP) might see your messages. However, if you use a VPN, this type of connection is much safer as a VPN service encrypts your traffic and changes your IP. Then your traffic can pass all the mid-points safely and privately.

Public Key Infrastructure

What is Public Key Infrastructure?



How does Ransomware work?


Ransomware code is often not sophisticated, but it doesn’t need to be, because unlike many types of traditional malware, it usually does not need to remain undetected for long in order to achieve its goal. This relative ease of implementation versus high-profit potential attracts both sophisticated cybercrime actors, as well as novice ones to operate ransomware campaigns.