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What is a scam in cryptocurrency: main types of fraud

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Scam in cryptocurrency has long gone beyond naive fakes and turned into sophisticated schemes disguised as investment projects, startups, and even charitable initiatives. Deception takes forms where truth sounds more convincing than lies. That is why it is important to understand the mechanics and typology of such scams in order not to fall into the trap.

What is cryptocurrency scam and how does it work

Cryptocurrency scam is a form of deception in which fraudsters disguise fraudulent schemes as real investment offers or blockchain technologies. The goal of such actions is the illegal acquisition of crypto assets by misleading users: through fake websites, counterfeit tokens, false income promises, or hacked accounts. It uses the attractiveness of digital assets as bait.

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The demand for tokens grows along with the desire to make quick money. Fraudsters take advantage of this by creating scams wrapped in technology. According to Chainalysis, in 2024, the volume of stolen funds in blockchain exceeded $9.9 billion. Fraud in the crypto sphere evolves, changes forms, but the goal remains the same — to obtain money through deception.

The crypto market is developing its ecosystem faster than regulators can understand it. Anonymity, decentralization, lack of guarantees — fertile ground for fraud. Investigations show that phishing sites hide behind one project, empty tokens with aggressive marketing behind another.

Types of cryptocurrency scams

Scams are divided into categories based on the principle of deception. Each type uses its own mechanics, psychology, and communication channels.

Common forms of fraud in the crypto sphere:

  1. Phishing. Fraudsters create copies of popular exchanges and wallets. The goal is to gain access to private keys and data. The presentation varies from email campaigns to search advertising. One click — and the digital asset is forever lost to someone else.
  2. ICO scams. Projects announce fundraising for launch. Creators issue tokens, promise growth, provide fake forecasts. After raising investments, they disappear. A well-known case is Centra Tech, where scammers raised $25 million using fake consultants and forged documentation.
  3. Pyramids and Ponzi schemes. Promises of high dividends, accrued at the expense of new participants. A vivid example is BitConnect: in 2017, the token was worth $463, a month later — $1. The scheme collapsed when the influx of new investors stopped.
  4. Rug pulls. The team develops a DeFi project, attracts liquidity, and then instantly withdraws it. This was the case with the AnubisDAO project, with investors losing $60 million. Victims are left with useless tokens.
  5. Fake airdrops and Giveaways. Participants are promised free tokens for subscriptions or fund transfers. Often the names of well-known brands are used, such as Tesla or Binance. Verification of the source and domain is absent — money is lost in seconds.

Financial manipulations on the blockchain take on hybrid forms. ICOs and phishing, tokens and pyramids are combined. It is important to recognize patterns before making a transaction.

Why cryptocurrency scams exist

The reasons are simple and not geographically dependent. The desire for quick profit, limited expertise, and lack of legal protection create ideal conditions. A platform without audit, an anonymous team, aggressive advertising — risk triggers.

Scams in crypto assets thrive on a lack of knowledge. People do not analyze whitepapers, do not check the team, do not verify tokenomics. Fraudsters actively exploit this vulnerability, including influencers and pseudo-experts on YouTube.

Real cases and statistics

Behind the loud schemes in the crypto world are specific individuals, sums, and shattered destinies. These stories are not hypothetical risks but confirmed facts that have left millions of users without funds.

Specific names and figures:

  1. PlusToken (China, 2019) — a pyramid scheme with losses of $2.25 billion. Promised 10–30% per month.
  2. WoToken — another copy of PlusToken. Losses — $1.1 billion. The scheme is almost identical.
  3. OneCoin — a pseudo cryptocurrency without a blockchain. Attracted $4.4 billion in investments. The project leader is still in hiding.
  4. Thodex — a Turkish exchange, the CEO fled with $2 billion. The exchange promised free Dogecoin to all new users.

Such projects impress not by scale but by the trust they managed to evoke.

How to avoid cryptocurrency scams

Cryptocurrency scams do not attack directly — they insinuate themselves into trust. Protection requires strategy and attention to detail.

Expanded list of security rules:

  1. Check the project team: public profiles, experience, connections with real companies.
  2. Analyze tokenomics: who holds a large share, how funds are distributed.
  3. Study the roadmap: specific stages, deadlines, reporting.
  4. Check the audit of smart contracts: reports from third-party organizations (e.g., CertiK).
  5. Avoid projects with guaranteed returns: the market is volatile, stability is a sign of manipulation.
  6. Never transfer digital currency to unfamiliar addresses: often used under the guise of “refunds.”
  7. Keep funds in your own wallet, not on an exchange: increases security.
  8. Use two-factor authentication and cold wallets.
  9. Check the website address: even replacing one letter can lead to a fake platform.

Avoiding cryptocurrency scams is a matter of habits and discipline. Deception often occurs with those who do not check the details and follow the hype.

Why investing in cryptocurrency carries risks

Cryptocurrency scams are not the only threat. Even legal projects can lead to losses. The crypto market remains highly volatile: token prices can drop by 80% in a day. Bitcoin volatility, for example, in 2022 exceeded 60% — six times higher than that of gold.

Investing in cryptocurrency risks also include technological failures. Exchange hacks, errors in smart contracts, vulnerabilities in wallets — all of this has already led to millions of dollars in losses.

How to protect cryptocurrency from attacks

Fraud in the crypto sphere will not disappear. Scammers adapt to trends: they use deepfake videos, DNS spoofing, infiltrate Telegram groups. Protecting digital assets is based on three principles:

  • source verification;
  • physical isolation of keys;
  • regular monitoring of transactions.

Hardware wallets Ledger, Trezor are suitable for storing data and tokens. The use of multi-signatures, monitoring activity on the blockchain, regular software updates significantly increase security.

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Example: when attempting phishing, a user with a hardware wallet receives a notification of the recipient’s address. If it does not match — the transaction is canceled.

Conclusion

Scam in cryptocurrency is formed at the intersection of greed, anonymity, and lack of control. Deception replaces innovation, playing on demand growth. Without verification, analysis, and sober calculation, it is impossible to earn. Blockchain provides tools, but does not negate common sense.

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Blockchain technology has created an alternative financial infrastructure in which there are no banks, intermediaries or barriers to entry. DeFi has transformed the logic of capital investment, freed up access to income protocols and eliminated trust as an essential requirement. Investors communicate directly with the code, the assets and the smart contracts. To understand how to invest in DeFi, you need to master the logic of the autonomous economy, which is based on transparency, mathematics and software architecture.

What is DeFi and how does it work?

DeFi (Decentralised Finance) is a system of financial services based on open protocols. Its main function is the automation of transactions via smart contracts. Due to the lack of centralisation, users manage their assets independently and communicate directly with the platforms.

Investors who learn to invest in DeFi work with decentralised exchanges (DEX), staking, farming, lending protocols, stablecoin platforms and DAOs. Asset management is done without registration or KYC, and transactions remain the sole responsibility of the owner.

First step: how to start investing in DeFi

What is DeFi and how does it work?Before investing in DeFi, it is important to determine which blockchain the protocol you are interested in is based on. Ethereum, BNB Chain, Arbitrum, Optimism, Avalanche: each solution has its own speed, gas fees, liquidity and number of projects. On the Ethereum network, for example, the cost of a transaction can vary from £3 to £25, depending on the load. Layer-2 solutions reduce the commission to a few cents while maintaining the same level of security. The choice of network depends on the capital, the frequency of transactions and the investment objectives.

How to choose a protocol: statistics and security

To understand how to invest safely in DeFi, you need to use objective assessment criteria. The priorities are the volume of locked funds (TVL), the age of the project, the reputation of the team, the frequency of audits, and resistance to attacks. Protocols with a TVL of $500 million, which have passed at least two independent audits and have been operating for more than 18 months without critical incidents, fall within the trust zone. Examples include liquidity pools, lending platforms, and yield aggregators. By analysing this data, investors minimise the risk of capital loss due to code errors or hacker attacks.

Key investment strategies in DeFi

DeFi offers a wide range of strategies with different risk profiles. It is important to consider the duration of the investment, the volatility of the tokens and the possibilities for reinvestment.

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Key areas:

  1. Staking: locking tokens in smart contracts to earn a percentage. Examples: ETH 2.0, ATOM, AVAX. The return varies between 5% and 12% per year.
  2. Yield farming: providing liquidity to common funds, resulting in the acquisition of LP tokens and rewards. Popular platforms: Curve, Balancer, PancakeSwap.
  3. Lending and borrowing: interaction via the Compound and Aave protocols. Income is generated from the interest paid by borrowers.
  4. Aggregators: automated platforms that optimise returns (Yearn, Beefy). They simplify complex strategies.
  5. Launchpads and IDO: participation in the early placement of tokens via DAO platforms and launchpads.

Interaction with DEX: trading without intermediaries

By learning to invest in DeFi, investors gain access to decentralised exchanges such as Uniswap, SushiSwap and TraderJoe. DEXs operate without an order book but use automated market makers (AMMs). Liquidity comes from users and the price is determined by an algorithm.

A special feature is the absence of custody. The trader does not transfer the tokens to the exchange but only grants temporary access to the contract. This eliminates the risk of account blocking or asset withdrawal. However, low liquidity or slippage can affect the outcome of the transaction.

Stablecoins and capital protection

Stable tokens pegged to fiat currencies play a crucial role in the DeFi infrastructure. Investors use stablecoins such as USDC, DAI, and USDT to access protocols, place in pools, or participate in staking without volatility. To choose the right assets and understand how to invest in DeFi, you need to consider the stablecoin’s reserve model: fiat (USDC), crypto-backed (DAI) or algorithmic. High transparency and regular reporting are criteria for reliability.

How to invest correctly in DeFi: risk assessment

DeFi involves technological, market and operational risks. Frequent attacks via flash loans, code errors, outdated libraries and excessive APRs require systematic assessment.

To understand how to invest in DeFi without losses, you should:

  • use multiple signatures and hardware wallets;
  • limit investments in unregulated protocols;
  • apply diversification;
  • monitor token behaviour through blockchain analysis.

It is also important to consider the influence of the cryptocurrency context, especially when the value of the underlying assets declines. For example, the sharp decline in the ETH price in 2022 led to the collapse of collateral in dozens of DeFi protocols.

How to choose a wallet for working with DeFi?

When choosing a tool for storing and managing assets, you need to consider network compatibility, security, and compatibility with dApps. Before investing in DeFi, the investor links the wallet to the smart contract, where the assets are registered in the protocol. For active transactions, the MetaMask, Rabby or Trust Wallet extensions are used. Hardware devices such as Ledger offer protection for large amounts of capital. The wallet interface must support multi-network operations, notifications, staking support and contract-level limit approval.

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Errors when signing transactions, unrepealed authorisations, and connection to phishing dApps create a risk of hacking, even when using a high-quality DeFi protocol. Therefore, before investing in DeFi, it is necessary to test each connection in an isolated browser and manually check the addresses.

Legal aspects and tax burden

Decentralisation does not relieve you of your responsibility. DeFi profits are subject to tax regulations. In various jurisdictions, income from farming and staking is classified as investment income. Failure to comply with tax reporting requirements will result in penalties. It is necessary to study local legislation, especially in countries where reporting on digital assets is mandatory. The use of anonymous wallets, offshore DAOs and uncertified tokens can lead to blockages or lawsuits when transferring money to fiat.

To illustrate, here are some examples that show how you can invest in DeFi with a reasonable level of risk and a reasonable strategy:

  1. In 2021, a user deposited $10,000 into the USDC/DAI common fund on the Curve platform. The total return over 12 months was 13.8% without any changes in the exchange rate.
  2. The investor distributed £5,000 across the Aave and Compound platforms and earned 7% per annum on the loans.
  3. By investing £2,000 in the Uniswap token (UNI) and staking it in the ecosystem before it was listed on centralised exchanges, the return was 85% in 9 months.
  4. The DAO Curve participant received governance tokens and sold them after voting on an important parameter, earning £1,400 in the internal economy.

These examples show that understanding the architecture, protocol logic and tokenomics makes it possible to scale capital safely.

How to track the effectiveness of the DeFi portfolio

To understand how to invest in DeFi, you need to regularly audit the portfolio. Services such as DeBank, Zapper, and Zerion add information about investments, accrued interest, and contract status. The platforms display the APY, asset value, and changes in positions in real time.

To manage risks, it is recommended to track the following:

  • LTV (loan-to-value) when issuing loans;
  • temporary losses in liquidity funds;
  • portfolio activity and authorisation history;
  • fluctuations in the stablecoins involved in the strategies.

Any deviation from the expected parameters requires immediate correction. The connection with the control panel and contract analysts strengthens control over capital.

DeFi outlook: where is the market headed?

How to choose a protocol: statistics and securityThe sector is growing. The number of unique wallets interacting with DeFi has exceeded 7 million. By 2025, solutions based on zk-Rollup, RWA platforms (tokenisation of real estate, securities) and hybrid protocols with CeFi features will appear. The development of DAO and voting based on participation in management reinforces the importance of long-term token ownership. New standards for smart contracts minimise risks. Therefore, understanding how to invest in DeFi remains an important skill for investors.

The cryptocurrency market is a constant thrill where some earn millions in a matter of days, while others lose entire fortunes. High variability makes investing in cryptocurrency not only a way to preserve capital but also a powerful tool for multiplying it. There are two fundamentally different approaches: short-term cryptocurrency investments and long-term asset holding. Let’s explore the difference between them and how to choose the optimal strategy.

Short-term cryptocurrency investments: essence and principles

When it comes to short-term investments, it implies investments aimed at quick profits. In this case, assets are acquired for a short period—from a few minutes to several weeks—and sold under favorable market conditions. The main goal is to take advantage of sharp price fluctuations in crypto and lock in profits before the next surge.

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The approach requires quick reaction to market changes, deep trend analysis, and the ability to control emotions. Unlike long-term cryptocurrency holding, where an investor can simply buy and hold an asset for years, short-term trading requires constant monitoring of the exchange rate and skillful risk management. Errors in calculations or emotional decisions can lead to significant losses, so it is important to apply reliable strategies and not rely on intuition.

Long-term investments: a strategy for the patient

The opposite approach is long-term investing. In this case, assets are acquired with a view to several years. The key bet is placed on the gradual growth of the cryptocurrency value due to fundamental factors: technology adaptation, regulation, increased blockchain solution adoption.

Long-term investments in cryptocurrency attract those who believe in the industry’s prospects and are willing to wait out periods of high volatility without succumbing to panic. The approach requires patience but potentially brings larger profits due to the asset’s value growth. Despite low activity in long-term holding, it is important for the investor to monitor technological changes, regulation, and macroeconomic factors that may affect the development of the crypto market.

How to invest in cryptocurrency: short-term vs long-term strategies

The choice of strategy depends on several factors. It is important to understand which trading style suits you best and take into account the initial capital, level of experience in working with cryptocurrency, and readiness for risks.

The main differences in strategies lie in the following aspects:

  • time horizon—short-term investments involve trading within a day or over a few weeks, long-term investments—over years;
  • risk management—short-term trading is associated with high risks but also potential high profits. Long-term investors take less risk, but their profitability depends on the overall market trend;
  • analysis tools—short-term traders rely on technical analysis, long-term ones—on fundamental cryptocurrency indicators.

Popular cryptocurrency investment strategies

Depending on the trading style and goals, investors use various strategies. Let’s consider the most common ones:

  • scalping—buying and selling cryptocurrency within a few minutes to make a small but quick profit;
  • day trading—buying and selling within the day without carrying positions to the next day;
  • swing trading—holding assets for several days or weeks until a favorable moment for sale appears;
  • HODL (long-term holding)—buying cryptocurrencies with a view to long-term growth.

Each method has its own characteristics, and it is important to choose the one that suits your goals and psychological comfort.

Where to store crypto: choosing a wallet for an investor

Every investor should ensure the security of their assets. Different types of wallets are used to store cryptocurrency:

  • hot wallets—convenient for quick access and trading but less secure;
  • cold wallets—provide maximum security as they store cryptocurrency offline.

For short-term cryptocurrency investments, hot wallets are more commonly used since they allow for prompt asset management. Long-term investors prefer cold storage to minimize hacking risks.

Risks of short-term and long-term investments

Any investment strategy involves risks. Short-term traders face high market volatility, psychological pressure, and the possibility of instant losses. Successful cryptocurrency trading requires not only market understanding but also strict adherence to a trading plan.

Long-term investors, in turn, are exposed to risks of regulatory changes, technological asset obsolescence, and global crises.

Why the choice of strategy is crucial

If an investor has not determined their investment strategy, they risk losing money due to impulsive decisions. Novices often switch from short-term trading to long-term holding after initial losses, even though they did not originally plan to hold assets for years. A sound approach begins with a clear understanding of goals and the selection of methods that align with them.

The development of the crypto market also influences the strategy. In 2025, many analysts predict increased regulation, which may change the rules of the game for short-term traders.

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Key takeaways

Short-term investments in cryptocurrency are suitable for those willing to work in conditions of high volatility, make quick decisions, and analyze the market rapidly. Long-term investments, on the other hand, require patience and belief in market growth.

Each approach has its pros and cons, and the choice of strategy depends on personal preferences, experience, and financial goals. The main thing is to be aware of risks, choose the right tools, and not forget about the security of your assets.