What Are Stablecoins and Why Are They Essential?

In the volatile world of cryptocurrencies, theStablecoinsThey are cryptocurrencies designed to maintain a stable value, usually tied to a fiat currency such as the US dollar (USD) or a set of assets. Unlike Bitcoin or Ethereum, whose prices fluctuate constantly, a stablecoin such as USDC or USDT seeks to always be worth $1.00.

These are essential tools forTransactions, Protection against volatility“Hedge” andbridges between the traditional world and cryptographyInvestors use them to quickly exit positions in other cryptocurrencies without having to convert to traditional money in a broker, a process that can be slow and expensive.In addition, they are the backbone of the decentralized finance sector (DeFi), serving as a common currency for loans, liquidity providers and more.

Mechanisms of Action: How Do They Maintain Stability?

The "magic" of stability is achieved through different mechanisms, each with its pros and cons:

  • Fiduciary Guarantee (Collateralized in Money):For each stablecoin issued, the companyins a dollar (or equivalent) in reserve. Examples: USDC (Circle) and USDT (Tether). Transparency and audit of these reserves are critical points.
  • Crypto Guarantee (Collateralized by Cryptocurrencies):They use other cryptocurrencies, such as Ethereum, as collateral. To offset collateral volatility, they require a collateral rate of more than 100% (e.g., guarantee $150 in ETH to issue $100 in DAI).
  • The algorithm (not collateralized)They try to maintain parity through algorithms that control supply, burning or cunning tokens according to demand. They are the most risky and have already experienced catastrophic failures, such as the case of the UST of the Earth (LUNA).

Cases of Use and Global Adoption: Beyond Speculation

Stablecoins have transcended the niche of traders.Their practical use is expanding rapidly:

  • The International Delivery:Sending money abroad using stablecoins can be faster and cheaper than traditional services.Circle partners with African fintech company SasaiTo expand the use of USDC in cross-border payments on the continent is a clear example of this trend.The initiative aims to improve the efficiency of transactions and transfers, a chronic problem in many regions.
  • Payments and Trade:Companies are beginning to accept stablecoins for payments, taking advantage of the speed of blockchains and price stability.
  • Access to Financial Services (DeFi)Anyone with a crypto wallet can use stablecoins to borrow, borrow, or earn income on DeFi protocols, without relying on a bank.

The Dark Side: Risks and Exploits

Despite the name "stable", stablecoins are not risk-free. Stability is a promise that depends on the solidity of the model and the security of the protocol. Recent incidents highlight these dangers:

The case of the protocolResolvedAccording to reports, an explorer (hacker) managed to spy 80 million USR tokens (the project’s stablecoin) without proper support, causing their value to fall to about $0.24. The team was forced to completely pause the protocol to “contain the impact”, reviving fears about the security and reliability of smaller stablecoins projects. This event illustrates the risks of stablecoins.counterparty(confide in the issuing entity),Security of Smart Contracts e Failures in the protocol design.

Other important risks include:

  • The regulatory risk:Governments around the world are debating how to regulate stablecoins, which can impact their operation.
  • Risk of Reserve:In the trust model, if the reserves are not fully audited and liquid, there may be a “run” to the ransom, similar to a bank.
  • The centralization :Many leading stablecoins are controlled by a single company, a point that goes against the decentralized philosophy of cryptocurrencies.

How to Choose a Stablecoin: Security Factors

For a user or investor, due diligence is essential. Before using orining a stablecoin, consider:

  1. Transparency and Audit:The company publishes regular audit reports of its reservations by a recognised firm (e.g. USDC is audited monthly).
  2. History and Reputation:How long has the project existed? has it passed market stress tests?
  3. Model of collateral:Is it trust, cryptographic or algorithmic? Understand the risks inherent in each.
  4. Adoption and Liquidity:Is it widely accepted in DeFi brokers and protocols?High liquidity facilitates entry and exit.
  5. Security of the code:Has the smart contract undergone safety audits from reputable companies?

Diversifying between stablecoins from different issuers (such as USDC, USDT, and DAI) can be a strategy to mitigate the specific counterparty risk of a single project.