Cybersecurity attacks on the blockchain

The Blockchain, despite its qualities, is not immune to cyberattacks. There is no invulnerable computer system and hackers take advantage of this to their advantage and find vulnerabilities and exploit them to perpetrate malicious attacks and where there is money, security must be extremely important because there will be people and groups who want to attack. In order to carry out an effective attack on the blockchain, hackers will have to coordinate the infiltration of all world nodes and be able to exceed 51%, and this is almost impossible to do, for the moment it has not been done with the bitcoin blockchain that As far as I know, you will have to violate the "distributor book" of many entities on the network and break the "consensus book" to alter the values ​​throughout the network. They have hacked exchange platforms and have infiltrated the accounts with their passwords or keys and have directly stolen coins, this is seen every year on many platforms. Attacks occurred to a blockchain. The most recent and well-known theft on the network was the theft of 1.5 million NFT tokens, mainly from the OpenSea company and was caused by the sending of a false email. In this case there is more behind all that, because many things are not clear and the culprits are not paying.

How to prevent a cyber attack? The financial world does not escape cyber attacks, much less in the world of cryptocurrencies, despite its encryption, its reliability, its immutability and its registry, there are people who are dedicated to investigating how to violate the system and look for vulnerable points. Each type of blockchain has its vulnerability, for example, private blockchains are more secure, but are controlled by a single entity, while public blockchains are robust because they are "monitored" by many entities, but have little privacy in their transactions. A weak point that security companies are always reviewing is the way to manage access to networks, since it is a vulnerable point where hackers can infiltrate. In addition, it is necessary to have a robust infrastructure that facilitates the detection of failures in the system. It is becoming more and more difficult for hackers to change what is stolen, the verification channels around the blockchain are increasing, this makes cyberattacks more difficult.

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