The document discusses blockchain security, detailing its essential tools, the relationship with cybersecurity, and the promises and drawbacks of blockchain technology. Key points include the importance of cryptography, the benefits of decentralization and transparency, as well as challenges like scalability issues and potential security risks such as 51% attacks. It emphasizes the need for robust security measures and collaboration between cybersecurity experts and blockchain specialists to ensure a secure digital future.

1. Blockchain
Security
Presentation topic is

2. Table of contents
Which tools is used to made up
blockchain.
Blockchain security
First we will discuss about
block chain security.
Blockchain drawbacks
In this section will discuss the
drawbacks of blockchain.
Blockchain tools
Relation with cyber security
Promises of cyber security
that ensure the data privacy.
Concussion
Blockchain is a new technology
there many difficulties
happened in this field.
Promises of blockchain
Promises of blockchain
security that help to secure
blockchain network.
01
03
02
04
05 06

3. Blockchain Security
Blockchain security refers to the measures and practices
implemented to protect the integrity, confidentiality, and
availability of data and transactions within a blockchain network.

4. Blockchain tools
Blockchain security relies on various tools and practices to
protect the integrity, confidentiality, and availability of data
and transactions within blockchain networks. Here are some
essential tools and techniques for blockchain security:
Cryptography:
● Hash Functions
● Digital Signatures
● Elliptic Curve Cryptography (ECC)
Wallets
● Hardware Wallets
● Software Wallets
Blockchain Monitoring
● Tools for real-time monitoring of blockchain transactions and
network activity to detect anomalies and suspicious behavior.

5. Cyber relation with blockchain
Cryptography
Both fields heavily rely on cryptographic techniques. Cybersecurity
uses cryptography to secure communications and data at rest, while
blockchain uses it for transaction validation and data integrity.
The relationship between cybersecurity and blockchain security is complex and
multifaceted. While both fields focus on protecting digital assets and data,
they differ in their approaches and objectives. Here are key points highlighting
their relationship:
Complementary Technologies
Blockchain and cybersecurity are often viewed as complementary technologies.
Blockchain can enhance cybersecurity measures, and cybersecurity is essential to
protect blockchain systems.

6. Cyber relation with blockchain
Secure Authentication
Blockchain technology can improve authentication and access control in
cybersecurity. It provides a secure way to manage digital identities and
access permissions.
Cross-Industry Applications
Cybersecurity and blockchain security have applications across various industries,
such as finance, healthcare, supply chain, and more. They play pivotal roles in
ensuring the integrity of digital operations.

7. Promises of blockchain
The promises of blockchain security are the
advantages and benefits that blockchain
technology offers in terms of securing data and
transactions. These promises include

8. Promises of blockchain
Transparency
Blockchain operates on a decentralized ledger visible to all participants.
This transparency reduces the risk of fraud and provides a clear audit
trail for transactions.
Immutability
Once data is recorded on the blockchain, it becomes nearly impossible to alter. This
immutability ensures the integrity of data, making it ideal for applications like supply
chain tracking and audit trails.

9. Promises of blockchain
Decentralization
Traditional centralized systems are vulnerable to single points of
failure. Blockchain's decentralized nature eliminates this risk, making it
highly resilient to attacks and system failures.
Trustless Environments
Blockchain enables trust in trustless environments, where participants may not know
or trust each other. This is achieved through consensus mechanisms and
cryptographic security.

10. Promises of blockchain
Data Integrity
Blockchain's append-only structure ensures that historical data remains
intact, which is crucial for compliance, auditing, and historical analysis.
Global Accessibility
Blockchain is accessible globally, making it an ideal choice for cross-border
transactions. It operates 24/7, improving availability and accessibility.

11. Drawback of bockchain
blockchain technology offers numerous benefits, it also
has its drawbacks and security challenges. Here are
some of the drawbacks and security concerns
associated with blockchain:
Benefits Drawbacks

12. Drawbacks blockchain
Lack of Privacy
Blockchain's transparency can be a drawback when it comes to user
privacy. All transactions are visible on the public ledger, potentially
revealing sensitive information.
Scalability Issues
Blockchain networks, especially public ones like Bitcoin and Ethereum, can face
scalability challenges. As the network grows, transaction processing can become slow
and expensive.

13. Drawbacks blockchain
Irreversible Transactions
While immutability is a security feature, it can also be a drawback.
Once a transaction is on the blockchain, it's nearly impossible to
reverse, even in cases of errors or fraud.
Loss of Private Keys
If users lose access to their private keys or forget their passwords, there is often no
way to recover their assets.
51% Attacks
In Proof of Work (PoW) blockchains, if an entity controls over 51% of the
network's mining power, they can manipulate the blockchain by double-
spending and rewriting transaction history.

14. Conclusion
In conclusion, blockchain security is an essential component of the ever-evolving landscape of
digital technology. It offers unique advantages such as immutability, transparency, and
decentralization, which can significantly enhance data integrity and trust in various applications.
However, it's not without its challenges, including scalability issues, 51% attacks, and smart
contract vulnerabilities.
To harness the full potential of blockchain technology while mitigating risks, organizations and
individuals must prioritize robust security measures. This includes implementing strong
cryptography, secure key management, and rigorous auditing practices. Additionally, staying
informed about regulatory developments and industry best practices is crucial.
As blockchain technology continues to evolve and find applications across diverse industries,
collaboration between cybersecurity experts and blockchain specialists becomes paramount. By
addressing the challenges and embracing the promises of blockchain security, we can create a
safer and more trustworthy digital future.