Blockchain has the potential to enhance cyber security by preventing fraudulent activities through consensus mechanisms and detecting data theft. As a decentralized storage medium, blockchain can prevent data theft from hackers by distributing data across multiple nodes. Using blockchain for security in DNS could make it difficult for hackers to break connections between domain names and IP addresses. Key benefits of blockchain for cyber security include distributed public key storage, decentralized data storage to remove centralized honey pots, and easy verification of software downloads and hardware provenance.

1. Blockchain In
Cyber Security
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2. Introduction
As the world goes online and people relays on the Internet for their
routine processes and habits, it is essential to maintain the security of
online data. Blockchain, a notable buzzword of recent days has taken
charges to secure online data.

3. Cyber Security - What is it ?
Cyber Security is the collections of techniques or methods to protect
computers, data, coding, and networks,etc., from access or attack by
unauthorized sources. Cyber Security is also known as Information
Technology Security or Computer Security that protects data or information.
In short, the protection against the theft of data in computers and the Internet
is termed as Cyber Security.
Cyber Criminals: A person who commits cyber crimes ie., using a computer or
online medium as a tool and target to steal data.

4. Types of Cyber Security
The major types of cyber security involve the following
1. Cloud security
2. Application security
3. Critical infrastructure security
4. Internet of things (IoT) security
5. Network security and so on.

5. Major Cyber Attacks
The most common types of cyber attacks that happen often are as follows:
1. Phishing attacks
2. Cross-site scripting (XSS) attack
3. Denial-of-service (DoS) and distributed denial-of-service (DDoS) attacks and
a lot more.

6. Challenges in Cyber Security
1. Protecting centralized Data
As data is stored in a centralized medium, it becomes a big challenge for cyber
security industry to protect all the data from hackers.
2. Preventing Data Theft
Current cyber security faces a lack of trust among business individuals as it
finds much difficult to prevent data theft.
3. False Data Entry Prevention
As storage is centralized, it requires many verification steps by the human to
prevent false data entry or data modifications.

7. Blockchain In Cyber Security
Blockchain is a booming technology that boosts every business and industry
verticals. As the count of cybercriminals increases complex and are endlessly
trying to steal valuable data like financial data, health records, intellectual
property, and personal identifiable information, so on.
So, Blockchain could potentially enhance cyber-defense that prevent
fraudulent activities through consensus mechanisms and detect data theft
depending on utilizing its characteristics such as data encryption, auditability,
operational resilience, immutability, and transparency.

8. Use-Cases Of Blockchain In Cyber Security
1. A Decentralized Storage Medium
As we people move faster with online, it is very necessary to make a safer
environment for all the personal information that we share on a medium (
computer or internet ). Most of the business still use a centralized medium for
its data storage, which makes it easier for hackers to reach data for stealing.
Since Blockchain-based decentralized storage medium can prevent business
data theft and hacks. When using blockchain

9. Use-Cases Of Blockchain In Cyber Security
2. Security in DNS
Most of the DNS is centralized and hackers can break the connections
between a domain name and IP address and can also make the website
unavailable. Hackers in recent days try to pair DNS attacks with DDoS attacks
to render websites unusable for a certain period of time.
Using blockchain technology can make it difficult for hackers as your data or
information are stored immutable on a decentralized, distributed ledger and
immutable smart contracts are present to power connections.

10. Benefits of Blockchain in Cyber Security
1. Distribution of Public Key and Multi-Signature Logins
2. Provides Decentralizing Data Storage that Removes Honey Pot.
3. Mitigating Denial-of-Service (DDoS) Attacks
4. Easy Verification of the Validity of Software Downloads / Updates
5. Provenance for Computer Hardware for Prevention of Foreign Intrusion.
Know more use-cases of Blockchain in Cybersecurity !!

11. Future of Blockchain-based Cyber Security
Blockchain technology can be utilized to prevent any type of data breaches,
identity thefts, cyber-attacks or false transactions ensuring data privacy and
security.
As days pass, the rate of Cybercriminals is raising which inturns create jobs for
security professionals over the next few years. It is the blockchain technology
that tends to be the savior of data security.
Cyber Security will be boosted double the amount of cybercriminals rate, only
when blockchain technology has been used as a medium of data storage.