DeFi is a set of financial services provided through decentralized protocols and smart contracts running on the blockchain. With DeFi, users can receive loans or lend their assets without intermediaries, trade tokens and assets using decentralized exchanges (DEX), earn on their assets by providing liquidity to projects or participating in farming, and use tools for automated portfolio management and investing without the need for traditional financial advisors.
Examples of Popular DeFi Applications
Uniswap is one of the most well-known decentralized exchanges (DEX) that runs on Ethereum. It allows users to exchange tokens directly through smart contracts, avoiding intermediaries.
Aave is a lending and borrowing protocol that allows users to borrow in a variety of tokens and earn by providing liquidity. Aave offers unique features such as “ variable and fixed rate loans ” and the ability to use your assets as collateral.
MakerDAO is a decentralized platform that allows you to create synthetic assets like DAI, a stablecoin pegged to the US dollar. Users can earn interest on their deposits and use DAI for lending.
Yearn.finance is a yield optimization platform that automatically routes users' funds to the most profitable lending and farming protocols. This allows users to get the maximum yield on their assets without the need for manual management.
Decentralized financial applications are making a breakthrough, offering users opportunities previously unavailable in the classic financial world. However, with this flood of new opportunities comes a number of risks. Let's look at the most common scams and ways to steal cryptocurrency in the DeFi space.
Phishing and fake projects
One of the most common threats in DeFi is phishing attacks. Attackers create fake websites that mimic real DeFi platforms and lure users into entering their personal information or private keys. You should always check the URL and verify the authenticity of the site before entering your information.
Scam Protocols and Pump and Dump Schemes
Some DeFi projects may turn out to be a scam from the start. These may be so-called pump and dump schemes, built on an artificial sharp increase in cryptocurrency due to coordinated actions of participants, followed by a collapse. Be careful with projects with unreasonably high promises of profitability.
Vulnerabilities in Smart Contracts
Although smart contracts promise security and transparency, they are not immune to errors. The contracts’ code may contain vulnerabilities that attackers can exploit to steal funds. More and more cases show that smart contract auditing does not always guarantee security, so it is important to study the reputation of auditing companies and the projects themselves.
Social engineering
Attackers may use social engineering techniques to trick users into giving up access to their funds. This may happen through phone calls, emails, or social media messages. In such cases, it is important to be vigilant and not trust anyone who asks for personal information.
Liquidity problems
Some projects may suffer losses due to lack of liquidity, making them vulnerable to attacks. Users who do not properly assess the risks may invest in such projects and face serious losses. It is recommended to always check the liquidity indicators and trading volume before investing.