Bitfinex is a full-featured spot trading platform for major digital assets & cryptocurrencies, including Bitcoin, Ethereum, EOS, Litecoin, Ripple, NEO, Monero and many more. Bitfinex offers leveraged margin trading through a peer-to-peer funding market, allowing users to securely trade with up to 3.3x leverage. We also boast a suite of order types to help traders take advantage of every situation.
How does the flow of Cryptocurrency handled? How is the ratio between supply and demand balanced? I have read that there has been times when the security of crypto-network has been compromised. Is it really the future of Digital Money? Rather than a currency, it seems to be an investment scheme plan. I am not trying to be a critic here, just a lot of questions bubbling into the mind.

A cryptocurrency is a digital or virtual currency that uses cryptography for security. A cryptocurrency is difficult to counterfeit because of this security feature. Many cryptocurrencies are decentralized systems based on blockchain technology, a distributed ledger enforced by a disparate network of computers. A defining feature of a cryptocurrency, and arguably its biggest allure, is its organic nature; it is not issued by any central authority, rendering it theoretically immune to government interference or manipulation.
Your section on Dash is a little sparse. Dash’s first new feature wasn’t instantSend but PrivateSend. Indeed Dash is the first and longest-running privacy coin. Might wanna add that. Also, Dash invented the masternodes system, which allows instantSend and privateSend to work. This also lets the project have a decentralized governance structure, and a censorship-free way of funding projects. Currently, the Dash ecosystem gets roughly $1 million per month to spend on everything from Developers to expansion projects in Venezuela. I would love to see these brief updates made to your Dash section.
Ethereum: Is probably the third most important coin [here in 2018, I’d argue that it is the second most important after Bitcoin]. Ethereum doesn’t have the longevity at the top like Litecoin, but it has some unique features and a market cap that make it a real contender. Most ICOs (Initial Coin Offerings) use Ethereum. It has a less intimidating cost that Bitcoin and has the second highest market cap. On that note, Ethereum classic is also notable. Ethereum is a spin-off (aka “hard fork”) from what isn’t today called Ethereum classic (like how our next up coin, Bitcoin cash, is a spin-off of Bitcoin.) NOTE: Ethereum is a fork of another relevant coin called Ethereum Classic.
A cryptocurrency (or crypto currency) is a digital asset designed to work as a medium of exchange that uses strong cryptography to secure financial transactions, control the creation of additional units, and verify the transfer of assets.[1][2][3] Cryptocurrencies use decentralized control as opposed to centralized digital currency and central banking systems.[4]