51% attacks

[Ayaancool]

Fortunately, there are both short- and long-term countermeasures against network attacks. First, peer selections could be made routing-aware. Bitcoin nodes could, for example, aim at maximizing the diversity of the Internet paths seen by their connections to minimize the risk that an attacker can intercept all of them. Moreover, nodes could monitor the behavior of their connections to detect events like abrupt disconnections from multiple peers or unusual delays in block delivery. These events could serve as an early indicator of a routing attack and could, for instance, trigger the establishment of extra randomly-selected connections. Finally, solutions like end-to-end encryption would also help (especially against delay attacks). Yet, encryption alone would not be sufficient to protect against partitioning attacks as an attacker can still drop encrypted Bitcoin connections.

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[tunapa]

Unfortunately for now nothing can be done done to this . everyone needs to secure their wallet with everything they can to prevent hackers from stealing their assests.

[tanghere02]

Hinestly we cant do anything about these thieves and attackers but thr best thing we should do is to prevent these from happening; for instance you have invested a couple of bitcoins and then thats all the money you have since you wanted to gain interest more than you gain at the bank. You should always put a 2fa or save your coins on an offline wallet or hardware wallet so others wont have access to it other than you.

[andeonnut]

Unfortunately for now nothing can be done done to this . everyone needs to secure their wallet with everything they can to prevent hackers from stealing their assests.

What are some best practices for securing your wallet?

[bitvalak]

actually this is easy to analyze. Smua altcoin I believe the encryption protection is strong because it is also formed from the algorithm. But if we want to go deeper, the theft happens in exchange or in a personal wallet. If it happens in exchange it means you've summed up your own answer 

[coinwizard_]

It's up to the managers of those projects to secure their networks. Verge has been hit by the 51% attack more than once but people still buy that coin and give it value. If verge was dropped along with other insecure coins then it wouldn't be a problem

[daarul50]

All crypto actually have enough security to be attacked by hackers. However, what often happens is hacking in an exchange service because the security in exchange is not equipped with an algorithmic encryption like the official wallet of each coin either bitcoin or altcoin.

[mineko]

I think the problem will take a long time, because the cryptocurrency market has now degenerated, maybe that's what it takes.

[tanjilrifat]

nodes could monitor the behavior of their connections to detect events like abrupt disconnections from multiple peers or unusual delays in block delivery. These events could serve as an early indicator of a routing attack and could, for instance, trigger the establishment of extra randomly-selected connections.

[tranle1267]

now this erros have solved, when they realize the attack, they defense it. if you scare this attack, you can hold some altcoin with stronger such as bitcoin, ETH, EOS, Wave, NEO... i think they can not attack with this method

[Kprawn]

A few years ago we had a close call with Bitcoin when Ghash.io mining pool became so popular that they nearly pulled off a

51% attack, but fortunately for us the Bitcoin community saw the threat and some miners moved their hashing power to

other mining pools. You can read more about it here :  https://en.wikipedia.org/wiki/Ghash.io  The problem with smaller

Alt coins is that they have less hashing power, so a bad actor with a lot of hashing power can attempt to do a 51% attack, if

he shifted that hashing power to mine that Alt coin. Most people/Pools do not do that, because it will destroy the value of the

coin, if it is detected.  

[Dudeperfect]

Technically, 51 per cent attack doesn't make any sense while earning from it. The movement someone puts his resources for such an attack if he succeeds then such cryptocurrency will become worthless resulting in the loss of value of every coin in existence including the coins stolen by the attackers. In simple words, it is like the suicide attempt along with the resources involved in it.