Understanding: Flash Loans
Decentralized finance is an incredible technological advancement, and there are several aspects of DeFi that offer infinite possibilities to those who are interested. One of the most important DeFi developments is what is known as a “flash loan.” Here, you will obtain a base understanding of what flash loans are and how they can be used.
A flash loan is the first type of loan that requires no collateral in order for the loan to go through. This allows for the loan to happen instantly and efficiently, provided that the liquidity is returned to the pool within one transaction block. If the liquidity is not returned to the pool in the required time period, every action up until that point will be reversed. This ensures that the funds are transferred securely and safely.
This type of loan is called a flash loan because the process happens so quickly. Binance describes the required actions as three parts: receive the loan, do something with the loan, repay the loan. These are the things that happen in a flash, hence the name.
The main point of flash loans is to make a profit, which makes it a very valuable asset for users. Because you do not have to have the collateral upfront, you are able to use the loan to flip a profit and pay back the loan immediately before another action is taken. As you can imagine, there is a lot of potential that comes along with the features offered by flash loans.
As with much decentralized lending, flash loans are a relatively new development in the cryptocurrency space. This year, the security of flash loans was questioned when two cyber-attackers used flash loans as a way to make off with almost $1,000,000 in value at the time.
While exposing the unapparent weaknesses of flash loans is not always ideal, it is also a good way to make sure that these issues are resolved and security is increased. When these attacks occurred, the rest of the cryptocurrency space was able to address similar vulnerabilities in their own systems.
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