Crypto Currency, Enterprise

The Top 10 Cryptocurrencies for 2018

For many people, 2017 will be considered the year that Cryptocurrencies entered the mainstream. No longer an obscure new technology…

For many people, 2017 will be considered the year that Cryptocurrencies entered the mainstream. No longer an obscure new technology used by a small number of enthusiastic followers, knowledge of their potential value is now widespread and many are looking for the Top 10 Cryptocurrencies for 2018.

Trading different Cryptocurrencies for investment purposes has become normal with many investors making large financial gains over the previous 12 months.

However, in recent weeks, there have been several events that have caused short-term volatility in the prices of various Cryptos. In some cases, the price falls have been dramatic.

Looking forward into 2018, what Cryptocurrencies are likely to weather this storm and come out on top at the end of the year?

 

The Strongest Contenders

 

1. Bitcoin (BTC)

This is the original cryptocurrency, emerging in 2008 after it was released by an anonymous programmer or group of individuals under the pseudonym of Satoshi Nakamoto.

Although it has increased in value throughout 2017, this is causing problems as the huge amount of people trading it has made its value incredibly volatile, meaning that it is increasingly difficult to use to buy things.

Its value, however, could still be driven higher in 2018.

There are a very small number of cryptos which you can buy directly with fiat currency on trading exchanges. On a Cryptocurrency trading platform, you usually have to buy an established crypto like Bitcoin with fiat currency and then trade that for the crypto you actually want to purchase.

The fact that Bitcoin is still peoples first choice in this regard means that it remains a very important Cryptocurrency in 2018.

 

2. Ethereum

This is often seen as the number two option in the Crypto community and is looked upon as Bitcoin’s main rival. However, it is very different to Bitcoin.

It is composed of two parts ‘Ethereum’ which is the underlying network and ‘Ether’ which are tokens sent on the network.

Again, whilst Ethereum is not in use widely by the general public, the fact that you usually have to buy an established crypto with fiat currency and then trade that for the crypto you actually want to purchase means that Ethereum, which is also used in this regard, is likely to continue to be popular in 2018.

 

3. Ripple (XRP)

This is a Crypto that experienced huge price rises in 2017. Despite appearing to be a competitor to the other major Cryptos, Ripple serves a different purpose and is, in fact, a centralised transaction network which can be used to transfer money just like a bank.

Money sent on the Ripple network is converted into the XRP token on one end and then back into the currency of choice at the other end.

Towards the end of 2018, several major companies began to announce trials of Ripple in its capacity as a payments mechanism. Should any of these trials prove successful in 2018, this could be the first Crypto to be used widely with obvious implications for demand for the XRP token.

However, it is not alone though in its design as a transaction network and has some competition in Stellar.

 

4. Stellar (XLM)

Launched in 2014 Stellar is different. Whereas most of the coins out there are just coins, Stellar is comprised of two things, the Stellar network, a network that can potentially be used to transfer everything from Dollars to Bitcoin and the other part, Stellar Lumen.

Stellar Lumen were coins created by the founders of Stellar. These tokens can also be sent on the Stellar network to pay for things potentially. But they have another use. There is a fee to send anything (Dollars, Bitcoin) on the Stellar payment network and this fee is paid in Stellar Lumen.

One Lumen is enough to make 100,000 payments though so a little goes an awful long way. When the time comes to sell Stellar it’s the Stellar Lumen tokens you will be selling.

After a slow start, there were several trials announced of Stellar in its capacity as a payments mechanism in late 2017 with the first Stellar ATM due to launch in Singapore shortly. Like Ripple, it faces into an exciting 2018.

 

5. Monero (XMR)

Monero is an open source Cryptocurrency that was created in 2014. It represents a revolution in Cryptocurrency technology.

It improves on existing Cryptocurrencies as it hides the identity of the sender, recipient and transaction amount using a sophisticated algorithm which has been extensively tested.

In the future, the value of Monero is potentially very strong. Its supply is about the same as Bitcoin yet the underlying technology potentially represents a major improvement on Bitcoin.

The technical structures used to preserve anonymity are stronger than Bitcoin and transaction speeds using the coin are at present much faster than Bitcoin.

 

The challengers

Whilst the 5 coins above remain likely to grab all the attention in 2018, the next 5 on our Top 10 Cryptocurrencies list are the ones which could generate some surprises.

 

6. Bitcoin Cash (BCH)

In August 2017 a disagreement between Bitcoin users over its increasing technical limitations led to what is known as a fork of the Bitcoin code. A group of Bitcoin enthusiasts ‘forked’ the token by switching to new software, hoping it could grow and scale in a way that Bitcoin could not.

The result of that fork was the birth of a whole new token, with a whole new circulation and a new public ledger sperate from the original Bitcoin ledger.

Since its inception, the coin has nearly always been in the top 10 Cryptocurrencies. It has yet to overtake Bitcoin but its founders surely hope that their technical efforts will bear fruit in 2018.

 

7. Cardano (ADA)

Yet another platform used to send and receive digital money, employing the use of its digital token ADA. It was created by Ethereum co-founder Charles Hopkinson in 2015 and is most popular in Japan.

Cardano is managed by an international group of scientists and academics specialising in blockchain technology. Again, should its unique technology result in more adoption it would become an important Crypto to watch in 2018.

 

8. NEO (NEO)

This is a relatively new Cryptocurrency. It enables the development of smart contracts and assets on the blockchain. Neo’s objective, while ultimately utilising many of the same technologies as Ethereum, is to be the platform for a new smart economy

NEO is compared to Ethereum because the two platforms share similar roles and goals, but the underlying technology is very different.

This coin is in its very early days but is supported by an excellent team and had an excellent 2017 with many investors encouraged by its potential based on the high profile of its founders.

 

9. Litecoin (LTC)

Litecoin is a peer-to-peer Cryptocurrency. Notable differences between Litecoin and say Bitcoin is Litecoin’s much faster transaction speeds and 84 million token limit in comparison to Bitcoins 16 million. However, it does have a more memory intensive mining process than Bitcoin.

Whilst it is likely to remain popular in 2018, it is facing into an increasingly competitive market. Its speed though means it will likely continue to remain relevant throughout the year.

 

10. EOS (EOS)

EOS is another blockchain platform aiming to overtake Ethereum as the go-to infrastructure for decentralised apps.

Revealed to the world at the Consensus 2017 event, it is very new and has some way to go to become established.

The platform was created to overtake Ethereum’s low number of transactions per second, which EOS’ founders believed was not high enough to support what would be needed in the future.

EOS can handle up to 50,000 transaction confirmations per second. This puts it ahead way of Ethereum in terms of speed.

One to watch and our final entry to our Top 10 Cryptocurrencies for 2018.

To check on all the current Cryptocurrency prices – CoinMarketCap

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Crypto Currency

A simple explainer on what quantum computing actually is, and why it is terrifying for bitcoin

Tech Share Share this article Copy link X icon X (Twitter) LinkedIn Facebook Email A simple explainer on what quantum computing actually is, and why it is terrifying for bitcoin Most simplifies the complex process of quantum computing as “it can be 0 and 1 at the same time.” That is not an explanation for

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A simple explainer on what quantum computing actually is, and why it is terrifying for bitcoin

Most simplifies the complex process of quantum computing as “it can be 0 and 1 at the same time.” That is not an explanation for why it threatens Bitcoin. This is.

By Shaurya Malwa|Edited by Aoyon Ashraf
Updated Apr 6, 2026, 5:00 a.m. Published Apr 5, 2026, 8:03 p.m.
Make preferred on
(Misha Friedman/Getty Images)

What to know:

  • Google has published research suggesting a future quantum computer could theoretically derive a bitcoin private key from its public key in about nine minutes, threatening the security of Bitcoin and other cryptographic systems.
  • Unlike classical computers, which process bits as either 0 or 1, quantum computers use qubits that can exist in multiple states simultaneously and exploit phenomena like superposition and entanglement to explore many possibilities at once.
  • This fundamentally different form of computation could undermine the mathematical assumptions behind current encryption, raising urgent concerns about the safety of existing blockchain assets and digital security more broadly.

This week, Google published a paper describing how a quantum computer could theoretically derive a bitcoin private key in 9 minutes, with ramifications that stretch to Ethereum, other tokens, private banking, and potentially everything in the world.

Quantum computing is easy to mistake for a faster version of a regular computer. But it is not a more powerful chip or a bigger server farm. It is a fundamentally different kind of machine, different at the level of the atom itself.

A quantum computer starts with a very cold, very small loop of metal where particles begin to behave in ways they do not behave under normal conditions on Earth, ways that alter what we think of as the basic rules of physics.

Understanding what that means, physically, is the difference between reading about the quantum threat and actually grasping it.

How computers and quantum computers actually work

Regular computers store information as bits — each is either a 0 or a 1. A bit is a tiny switch. Physically, it’s a transistor on a “chip” — a microscopic gate that either lets electricity through (1) or doesn’t (0).

Every photo, every bitcoin transaction, every word you’ve ever typed is stored as patterns of these switches being on or off. There is nothing mysterious about a bit; it is a physical object in one of the two definite states.

Every calculation is just shuffling these 0s and 1s around really fast. A modern chip can do billions of these per second, but it still does them one at a time, in sequence.

Quantum computers use something known as qubits instead of bits. A qubit can be 0, 1, or — and this is the weird part — both at the same time!

This is possible as a qubit is a completely different kind of physical object. The most common version, and the one Google uses, is a tiny loop of superconducting metal cooled to about 0.015 degrees above absolute zero, colder than outer space but here on Earth.

At that temperature, electricity flows through the loop without any resistance, and the current is said to exist in a quantum state.

In the superconducting loop, current can flow clockwise (call that 0) or counterclockwise (call that 1). But at quantum scales, the current does not have to pick one direction and actually flows in both directions simultaneously.

Don’t mistake it for switching between the two really fast. The current is measurably, experimentally and verifiably in both states simultaneously.

(CoinDesk)

Mind-bending physics

With us so far? Great, because here’s where it gets genuinely strange, because the physics behind how it works isn’t immediately intuitive, and it is not supposed to be.

Everything someone interacts with in daily life obeys classical physics, which assumes that things are in one place at one time. But particles do not behave this way at the subatomic scale.

An electron does not have a definite position until you look at it. A photon does not have a definite polarization until you measure it. A current in a superconducting loop does not flow in a definite direction until you force it to pick.

The reason we don’t experience this in everyday life is decoherence. When a quantum system interacts with its environment, air molecules, heat, vibrations and light, the superposition collapses almost instantly.

A football cannot be in two places at once because it is interacting with trillions of air molecules, dust, sound, heat, gravity, etc., every nanosecond. But isolate a tiny current in a near-absolute-zero vacuum, shield it from every possible disturbance, and the quantum behavior survives long enough to compute with.

That’s why quantum computers are so hard to build. People are engineering physical environments where the laws of physics that normally prevent this stuff from happening are held at bay for just long enough to run a calculation.

Google’s machines operate in dilution refrigerators the size of huge rooms, colder than anything in the natural universe, surrounded by layers of shielding against electromagnetic noise, vibration, and thermal radiation.

And the qubits are fragile even then. They lose their quantum state constantly, which is why “error correction” dominates every conversation about scaling up.

So quantum computing is not a faster version of classical computing. It is exploiting a different set of physical laws that only apply at extremely small scales, extremely low temperatures, and extremely short timeframes.

(CoinDesk)

Now stack that up.

Two regular bits can be in one of four states (00, 01, 10, 11), but only one at a time (since current flows in only one direction). Two qubits can represent all four states at once, as the current is flowing in all directions at the same time.

Three qubits represent eight states. Ten qubits represent 1,024. Fifty qubits represent over a quadrillion. The number doubles with every qubit that is added, which is why the scaling is so exponential.

The second trick is something called entanglement. When two qubits are entangled, measuring one instantly tells an observer something about the other, no matter how far apart they are. This lets a quantum computer coordinate across all those simultaneous states in a way that regular parallel computing cannot.

And these quantum computers are set up so that wrong answers cancel each other out (like overlapping waves that flatten) and right answers reinforce each other (like waves that stack higher). By the end of the computation, the correct answer has the highest probability of being measured.

So it’s not brute-force speed. It’s a fundamentally different approach to calculation — one that lets nature explore an exponentially large space of possibilities and then collapses to the right answer through physics rather than logic.

A monumental threat to cryptography

This mind-bending physics is why it is terrifying for encryption.

The math protecting bitcoin relies on the assumption that checking every possible key would take longer than the age of the universe.

But a quantum computer doesn’t check every key. It explores all of them simultaneously and uses interference to surface the right one.

That is where it ties into Bitcoin. Going one direction, from private key to public key, takes milliseconds. Going the other direction, from public key back to private key, would take a classical computer a million years, or even longer than the age of the universe. That asymmetry is the only thing proving that a person is holding their coins.

(CoinDesk)

A quantum computer running an algorithm called Shor’s can go through that trapdoor in reverse. Google’s paper this week showed it could do so with far fewer resources than anyone previously estimated, and within a timeframe that races against bitcoin’s own block confirmations.

This is why the threat of quantum computers breaking blockchain encryption is genuinely making everyone very worried.

How that attack works step by step, what Google’s paper specifically changed, and what it means for the 6.9 million bitcoin already exposed, is the subject of the next piece in this series.

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