February 15, 2026

Capitalizations Index – B ∞/21M

Are 51% Attack Hostile Takeovers Legal?

Are 51% Attack Hostile Takeovers Legal?

Since cryptocurrencies have become more popular, regulators have struggled to keep up with the technology and promulgate rules to ensure fair competition in the market. Currently, cryptocurrencies markets have been ripe with fraud and manipulation. While cut-and-run schemes and engaging in trading practices to cause price manipulation clearly implicate certain criminal statutes, it is unclear whether hostile takeovers by miners of blockchains are illegal under current criminal statutes.

What is a 51% Attack?

To understand how a 51% attack works, there needs to be a basic understanding of how blockchains operate. Blockchains operate via a public ledger where transactions are verified and recorded to prevent double spending of the cryptocurrency. This allows the cryptocurrency to not be replicated and allows it to operate as transferable money. In Proof-of-Work cryptocurrencies, such as Bitcoin, transactions are verified by “miners” or people who run computers that solve complex algorithms to verify the blockchain’s transactions. The blockchain depends on the miners to correctly verify transactions that occurred and enforce the Bitcoin protocol in a way that prevents fraud and double spending.

But what happens when the miners don’t verify the correct transactions? Under normal circumstances, any block that contains non-valid transactions will be rejected. However, if 51% of the miners are willing to verify a block with non-valid transactions, then the blockchain could possibly be taken over by these miners and the non-valid transactions could be verified. This takeover by the simple majority of miners is referred to as a 51% Attack.

Why Would a 51% Attack Occur?

Many cite that bad actors are deterred from committing 51% Attacks because the coins they could possibly steal would be worth much less after the 51% Attack since the integrity of blockchain would be called into question. However, it is possible that proof-of-work blockchains could be taken over for reasons other than to steal coins.

In the ICO market, some blockchains are very similar in purpose and use. A blockchain’s miners may view a competing blockchain as an obstacle to the long term success of the blockchain they mine. If the miners coordinated and had the mining capacity to take over the rival blockchain, they could commit a 51% Attack in order to destabilize the competing blockchain. This could deter new users from engaging the blockchain and drive existing users to the miners’ blockchain. The miners who committed the attack would profit since the gain in users could increase the price of their coin holdings and cause higher transactions on the blockchain, which could result in higher fees for the miners to collect.

If another ICO bull market begins, the higher stakes and crowding in the ICO space could cause some miners to resort to more aggressive tactics to allow their coin to stand out. Hostile takeovers of blockchains could be viewed as a way to consolidate a foothold in certain areas of the ICO sphere and prevent competition. And much like corporate raiding in the 1980s, a few successful blockchain hostile takeovers could cause them to be viewed as a legitimate way to deter or eliminate competing cryptocurrencies.

Are 51% Attacks Illegal?

As of right now, 51% Attacks are not illegal in and of themselves. There are no federal statutes forbidding the takeover, by miners, of a blockchain.

That said, the context of the attack could determine if criminal liability exists. If the underlying purpose of the 51% is to divert coins to one’s own wallet for personal gain at the expense of the original owner, that could be a possible criminal act. However, legal obstacles still remain. Courts have yet to establish how one owns or possesses cryptocurrency. Is cryptocurrency owned by the person who possesses the private keys or is ownership actually established by the consensus of the blockchain? If ownership is subject to the consensus of the blockchain, one could argue that the original owner of the cryptocurrency impliedly availed themselves to the rule of the blockchain when they purchased or mined the coin.

Another possible avenue of criminal liability is in the context of securities law. Currently, the Securities and Exchange Commission has taken the position that many ICOs are securities under U.S. law. As a result, these coins (and their blockchains) would be subject to securities regulations. The United States has laws addressing price manipulation. However, these laws generally address price manipulation in the context of buying or selling the security or derivatives to manipulate the price of the security. They do not address attacking the underlying infrastructure to the security to cause a manipulation in price.

Ultimately, a 51% miner takeover is not illegal and the existing criminal framework does not adequately address issues within the world of blockchains. Much like other emerging technologies, oversight and regulation are needed to deter bad actors and help promote new investment in the market. As of now, blockchains largely remain legally exposed to hostile takeovers by miners.

Published at Wed, 08 May 2019 19:06:48 +0000

Previous Article

Oil Field Alchemy: How ₿itcoin Can Turn Waste, Emissions into Proof-of-Work

Next Article

Risk On! Fundstrat’s Tom Lee Spots a ‘Huge Buying Opp’ in Stocks

You might be interested in …

Samson Mow Introduces Liquid Networks at Blockchain Forum in Canada

Samson Mow Introduces Liquid Networks' at Blockchain Forum in Canada

Blockstream’s Samson Mow and Paycase’s Joseph Weinberg unveiled the Liquid network yesterday at the Blockchain Association of Canada’s Government Forum in Ottawa, as a step forward in the ongoing bitcoin scaling debate.

The Liquid network is a federated sidechain designed to provide new features and benefits to exchanges, users, and businesses by leveraging a sidechain which will process transactions more quickly and efficiently than the main bitcoin blockchain.

Sidechains like the Liquid network offer automated real-time audit, a secure open protocol, and unforgeable secure tokens, all of which can be used over the open internet.

Samson Mow, Chief Strategy Officer with Blockstream told bitcoin Magazine:

“There’s a preference from some people to scale on-chain with block size increases, but that’s a technical dead-end. Scaling off-chain with sidechains means leveraging proven technology that’s already available, and will be far superior to static blocksize increases for trivial on-chain scaling gains.”

Mow explained:

“Sidechains allow for new innovations in security models and features, plus the added benefit of faster and more cost efficient transactions – if more businesses were utilizing sidechains for use cases involving recurring transactions, they would take some pressure off the main bitcoin blockchain.”

He noted that there are strong indications that cryptographic federations and sidechains in general are a good solution to better distribute networks that currently hold the potential for centralized systemic risk.

“In the case of Liquid, it will also improve bitcoin interchange liquidity, and accelerate trading and security for a large percent of today’s global and currency-paired BTC trading,” added Mow.

Mow explained that Liquid networks or “Liquid” represents a point-to-point sidechain that provides near-instant, secure transfer of assets (bitcoin initially), all while user and exchange environments remain separate from the movement of the underlying value.

Paycase CEO Joseph Weinberg told the audience that they have been working with users, enterprises, financial institutions and others on solutions that leverage strong federations.

Weinberg told bitcoin Magazine:

“Sidechains become even more interesting when you have multiple sidechains from an interoperability perspective. As you tokenize the world, you see this marketplace of all assets being liquefied and then rapidly traversed, similar to how currents move liquid water around the world.

“It’s this frictionless flow and interoperability that our economy here in Canada and our geo-political and economic partners around the world are really well positioned to adopt and champion into the mainstream.”

Samson Mow Introduces Liquid Networks' at Blockchain Forum in Canada

Strong Federations and Sidechains

In order to function, a Liquid network requires explicit trust of a group of parties, governance guarantees whereby you have rule adherence and a network of many participants responsible for network consensus.

While accelerating trading in bitcoin, this system will build an infrastructure that leads to a “trustless” exchange for users.

Best use cases include cryptographic assets, central bank currency issuance, land titles/registries, credit issuance and settlement between large institutions.

Mow noted that what Lightning Networks can do for smaller transactions, the Liquid Network can do for larger transactions between companies and exchanges.

Currently, Liquid Beta participants include Bitso, Bitfinex, Bitt, BTCC, Coins.ph, Streami, Paycase, The Rock Trading, Unocoin and Zaif. Discussions continue with other partners.

Bank of Canada Is Interested in Liquid Networks

While in Ottawa, Mow and Weinberg met with representatives from the central Bank of Canada. Weinberg told us:

“We met with the Bank of Canada and had some great discussions with them about blockchain technology, and use cases and systems like Paycase’s cross-border transaction platform Traverse and Blockstream’s Elements platform.

“There is a sense that the media misrepresented the Bank’s recent comments on the Jasper experiment, which was actually a well-balanced and accurate assessment of the technologies they’ve trialed to date. I think they’re still very much interested in evaluating blockchain technology.”

Weinberg added: “We are also working on other sidechain initiatives that leverage strong federations and confidential assets via the elements project both in Canada and globally that require multi-participant governance guarantees and explicit trust.”

He added that they are excited going forward, not just about Liquid networks but the whole interoperation and weaving of different technology stacks in the ecosystem to enable new use cases and leverage all the great layers of the blockchain stack that are being built around the world.

The post Samson Mow Introduces Liquid Networks at Blockchain Forum in Canada appeared first on Bitcoin Magazine.