#certik #flashloan #defi #blockchain #cryptocurrency
A new CertiK series giving users bite-size tips and info to stay informed and safe in the #crypto space. Episode 9: What is a Flash Loan?
Learn how a #flashloan works and more in under 2 mins!
A flash loan is an uncollateralized short-term loan. They are a new invention in the Defi space, introduced by the lending protocol, AAVE. A smart contract is used to borrow and repay flash loans in the same transaction. If a flash loan isn’t repaid in the same transaction, the transaction fails, making it as though the loan never happened.
Flash loans present an opportunity for high-frequency and arbitrage traders with the ability to instantaneously access capital, allowing a trader to sell on one exchange and purchase on another. Arbitrage was more common when liquidity was low and exchanges didn’t share price feeds.
Flash loans have been used to attack exchanges and protocols. This occurs when a malicious user takes out a flash loan from a lending protocol and uses the borrowed funds to manipulate prices on another protocol. Flash loan attacks are very lucrative because the attacker does not have to deploy a lot of capital to carry out the attack.
Smart contract audits are a necessary first step in mitigating a flash loan attack. CertiK’s Skynet on-chain monitoring helps recognize these attacks in real-time and broadcasts community alerts on the Security Leaderboard.
From smart contract audits to on-chain monitoring, there are tools in place to help projects build safer protocols from the ground up.
To learn more about flash loans, visit CertiK.com/resources.
Bite Size Blockchain A new CertiK series giving users bite-size tips and info to stay informed and safe in the #crypto space. Episode 5: What is Blockchain Analysis? Check it out to learn what blockchain analysis is. https://www.certik.com/resources
Bite Size Blockchain
A new CertiK series giving users bite-size tips and info to stay informed and safe in the #crypto space. Episode 1: What is a Rug Pull?
Check it out to learn what a #rugpull is, how it happens, what to look out for, and more!
Rugpulls are one of DeFi's most common frauds. They occur when a project's founders depart and liquidate their tokens on the open market.
Scammers exploit the features of a decentralized exchange, known as a DEX, to pull off their rugpulls. They often pair their token with a real asset for purchase.
As their token skyrockets in price due to hype, the founders liquidate their tokens on the market, once they have made enough money from the pairing of the real asset, causing the value of their tokens to crash.
Here are some indicators of a rugpull.
One, the yields are too high. Two, the creators remain anonymous. Three, the coin prices skyrocket. Four, there are extensive marketing tactics, and five, there is no liquidity lockup.
To learn about rugpulls and how to avoid them, visit CertiK.com/resources.