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7 Blockchain Security Issues You are Likely to Encounter

Blockchain security technology vulnerabilities, attacks, and hacks.

7 Blockchain Security Issues. With the ever-growing popularity of blockchain technology, it’s important to be aware of the security issues that may arise. Here are some of the most common security problems you’ll likely encounter when using blockchain technology.

Blockchain Security Issues

1. Scalability Issues

Blockchain technology is still in its infancy and therefore has scalability issues. This means that the network can only handle a limited number of transactions at any given time. This is one of the most significant issues facing blockchain technology today that services like WeTransfer security help address.

2. Routing Attacks

The other common security issues facing blockchain technology is the risk of routing attacks. This type of attack can happen when a malicious actor tries to redirect traffic on the network to disrupt the system.

Every router has something called a routing process. Having these malicious packets in the process means that the router is no longer able to handle the number of packets currently in the routing table. Without the correct protection and encryption, the routing table can become extremely vulnerable. As routers become more and more confused, the vulnerability side really gets exposed as malicious data starts circulating around the network creating loops. This causes the network to slow down and makes it very difficult for the network team to conduct debugging process.

The routing poisoning method will result in very dangerous damage to the network and server as a result of incorrect data being added to the routing table.

3. Sybil Attacks

Sybil attack is when a malicious actor creates multiple identities to gain control of the network. This type of attack can be challenging to detect and can have a significant impact on the network. It can be used to disrupt the system or steal information.

4. 51% Attacks

A 51% attack is an attack where a single entity or group controls more than 50% of the computing power on the network. This type of attack can be used to double-spend coins, reverse transactions, or even block other users from accessing the network.

5. Malicious Nodes

The other security issues facing blockchain technology are the risk of malicious nodes. This can happen when a lousy actor joins the network and tries to disrupt it. They may do this by flooding the network with transactions or attempting to reverse valid transactions.

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6. Transaction Malleability

Transaction malleability is an issue that arises due to the way that transaction data is stored on the blockchain. This can allow a malicious actor to change the data in a transaction without invalidating the signature. This can confuse and lead to double-spending or other problems.

7. Weak Private Keys

If a private key is weak, it can be easy for a hacker to guess. This means that they could gain access to your funds. Private keys should be kept secret and strong enough that they can’t be easily guessed.


Blockchain technology is still in its early stages and therefore faces many security issues. However, WeTransfer is aware of these issues and is working on solutions. However, is WeTransfer Safe? Yes, and with the right precautions, you can use blockchain technology safely and securely.

blockchain security issues you are likely to encounter
Blockchain Security Issues to Encounter

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