Ethereum is a well-established network that has run since 2015, but ETH is not safe in the sense of being stable or protected. Its price can swing sharply, and it is not insured like a bank deposit. The risks you control, such as scams, fake tokens, phishing and wrong-network transfers, can be reduced with careful habits.
Ethereum is a well-established network, but ETH is not “safe” in the sense of being stable or protected. Its price can swing sharply, and it is not insured like money in a bank. If you are new to the network itself, start with what Ethereum is and how it works.
The risks you can control, such as scams, fake tokens, phishing and sending ETH to the wrong address or network, can be reduced a lot with a few careful habits. This guide takes each risk in turn. When you are ready to compare prices, see the Ethereum price and payment options.
What does “safe” mean when you buy Ethereum?
It means three things: whether the network is secure, whether the price is stable, and whether your purchase and wallet are protected from theft and mistakes. Only the last one is mostly in your hands. Here are the main risks at a glance.
| Risk | What it looks like | How to reduce it |
|---|---|---|
| Price swings | ETH falls sharply after you buy | Spend only what you can afford to lose |
| Smart-contract bugs | An app holding your ETH is hacked | Skip apps, or start small with ones you understand |
| Fake tokens | An unknown token appears in your wallet | Ignore tokens you did not buy |
| Phishing and drainers | A site asks for your recovery phrase or an approval in your wallet | Never share the phrase; read what you sign |
| Wrong address or network | ETH goes to a look-alike address or another network | Check the full address and the network |
Is the Ethereum network secure?
The network has a strong security design, but it is not free of risk. Ethereum’s main network (mainnet) went live on 30 July 2015. Since an upgrade called The Merge on 15 September 2022, it has used proof of stake to agree on new blocks (ethereum.org, as of September 2026).
Under proof of stake, validators (the computers that add new blocks) lock up ETH as a deposit. If they try to cheat, for example by proposing conflicting blocks, some or all of that ETH can be destroyed. To take control of the chain, an attacker would need a majority of all the ETH that validators have locked up, and would put that huge sum at risk. For the bigger picture, read how Ethereum works.
The record is not spotless. In 2016, an app called The DAO was drained of over 3.6 million ETH in a hack. On 20 July 2016, the network was changed (forked) to move those funds to a contract where the people who lost them could withdraw them. Some miners refused to follow because, as ethereum.org puts it, the incident “wasn’t a defect in the protocol”. They kept the original chain running as Ethereum Classic.
The lesson: holding ETH in your own wallet and putting ETH into apps carry different risks. And like any software, Ethereum itself could have bugs, so no one can honestly call it free of risk.
How risky is ETH’s price?
Very risky. ETH’s price can rise or fall sharply within days or even hours, and no one can reliably predict it. For example, ETH’s daily closing price fell from about $4,812 on 8 November 2021 to about $994 on 18 June 2022, a drop of roughly 79% (Yahoo Finance, as of September 2026). Past performance does not predict future results.
There is no safety net either. The US Federal Trade Commission (FTC) notes that crypto held in accounts is not insured by a government the way US dollars in an FDIC-insured bank account are. The FTC also warns that only scammers promise sure profits or big returns (FTC, as of September 2026).
If the price drops, you still hold the same amount of ETH; only its value in dollars or euros changes. The guide to crypto volatility explains why prices move so much. Only spend what you can afford to lose.
What are smart-contract and DeFi risks?
They are the risk that an app built on Ethereum has a bug or is hacked, and the ETH you put into it is lost. A smart contract is a program that runs on Ethereum. DeFi (decentralized finance) apps are built from these programs and let people lend, borrow or trade without a bank. See what DeFi is and how it works.
Ethereum.org itself warns that “Ethereum products, like any software, can suffer from bugs and exploits.” A hack of one app can wipe out what you deposited in it, and usually no one can reverse it.
You do not need any of these apps to own ETH. If you use them, start with small amounts and stick to apps you understand. The same care applies to layer 2 networks (explained below): ethereum.org says their safety depends on “the underlying technology, smart contract security, and maturity of the network.”
How do fake tokens and airdrop scams work?
Scammers create tokens that copy the name and symbol of real ones, then use them to lure you to a harmful website. Many Ethereum tokens follow a standard called ERC-20, and anyone can create one. As ethereum.org puts it, scam tokens “can use the same name, symbol”, but they cannot use the same contract address (the token’s unique on-chain ID).
ETH itself is not one of these tokens. It is the network’s own currency, and it is older than the ERC-20 standard (ethereum.org, as of September 2026).
A common trick is to airdrop (send for free) an unknown token to your wallet, often with a website named in it where you can supposedly claim or sell it. Visiting that site and approving what it asks can hand your funds to the scammer. To stay safe:
- Ignore tokens you did not buy or expect, and do not try to sell or move them.
- Before you buy any token, check its contract address on the project’s official website.
- Be wary of any token or website you only found through a message, an ad or an airdrop.
To tell genuine airdrops from fake ones, read what a crypto airdrop is.
How do phishing and wallet-drainer scams steal ETH?
They trick you into giving away your recovery phrase, or into signing a transaction that hands over your tokens. Phishing means fake emails, ads, messages or websites that copy a real brand. In crypto, the target is usually your seed phrase, also called a recovery phrase: the words that restore your wallet.
Ethereum.org’s rule is simple: “Never, for any reason, share your recovery phrase or private keys!” No real company or support team needs them. The support guide on phishing attacks lists the warning signs.
Drainer scams ask you to approve a transaction that lets a smart contract spend your tokens, sometimes with no limit. Ethereum.org warns that “an unlimited spend could enable the smart contract to drain your wallet.” Read every wallet pop-up, and reject anything you do not understand.
Approvals you gave in the past stay active until you remove them. Ethereum.org’s guide to revoking token access lists tools that show and cancel them, such as Etherscan’s token approval checker and Revoke.cash (as of September 2026).
What other ETH scams should you watch for?
Watch for giveaway scams, fake support agents, address poisoning and recovery scams. Each one relies on you acting quickly without checking.
- Giveaways. “Send 1 ETH, get 2 back” offers are scams, even when they seem to come from someone famous. Ethereum.org is blunt: “Giveaways are always scams.”
- Fake support. Scammers pose as wallet or exchange staff in private messages. Contact support only through the official website, and learn how to spot Coinmama employee impersonators.
- Address poisoning. Scammers send tiny transactions from an address that looks like one you use, hoping you will copy it from your history later. Etherscan describes it as “creating deceptive transactions in the victim’s address transaction history”. Save trusted addresses in your wallet’s contacts, and check the whole address, not just the start and end.
- Recovery scams. After a loss, so-called recovery experts offer to get your crypto back for a fee. Ethereum.org says no one can reverse blockchain transactions, so such an offer is almost certainly a second scam.
For more examples, see common scams in the crypto industry and how to protect yourself from fraud.
How do you keep your ETH wallet secure?
Keep your recovery phrase offline, match the type of wallet to the amount, and test before you send large sums. These five habits cover the basics:
- Protect your recovery phrase. Write it down, store it offline, and never type it into a website.
- Match the wallet to the amount. A hot wallet is connected to the internet and suits small amounts. A cold wallet, such as a hardware device, keeps your keys offline for larger holdings. Compare them in hot wallet vs cold wallet.
- Buy hardware wallets from the maker. Use the maker’s own shop or an official reseller, never a second-hand device.
- Turn on two-factor authentication (2FA). Use it on every crypto account. Ethereum.org recommends an authenticator app over SMS codes, which can be stolen through SIM swapping.
- Send a test amount first. Send a small amount to any new address and check that it arrives before you send the rest.
New to wallets? Start with what a crypto wallet is, then follow how to open an Ethereum wallet.
Which network should you use when sending ETH?
Use the same network on both sides of the transfer. ETH lives on Ethereum mainnet, the main public network, and also on layer 2 networks such as Arbitrum One and OP Mainnet. Layer 2s are separate networks built on top of Ethereum to make transactions cheaper and faster (ethereum.org, as of September 2026).
These networks use the same kind of 0x address. MetaMask notes that one recovery phrase gives you the same address on all compatible networks, so a wallet will often accept your address on any of them. But ETH sent on one network only shows up on that network.
If the address is in your own wallet, you can usually find the funds by switching the wallet to that network. If it belongs to a service that does not support that network, you depend on that service’s support, and the ETH may be hard or impossible to get back. Before any transfer, check the network and the full address. Are Ethereum addresses case-sensitive? explains what to look for.
How do you choose where to buy ETH?
Choose a service that can serve your country, shows the full price before you pay, checks your identity and sends ETH to a wallet you control. No service can remove price risk, but where you buy affects how safe the purchase is. Check that the service:
- Can serve you where you live. Look for its list of supported or restricted countries.
- Shows all fees before you confirm, including any network fee.
- Checks your identity. Reputable services usually run identity verification, often called KYC. Be wary of offers to skip it; KYC and crypto explains why the checks exist.
- Has support you contact yourself through its official website, not agents who contact you first.
- Sends to a wallet you control and tells you which network the ETH is sent on.
For the purchase itself, step by step, read how to buy Ethereum.
Frequently asked questions
Sources
- ethereum.org: The history of Ethereum (Frontier, the DAO fork, The Merge) (checked September 2026)
- ethereum.org: Proof-of-stake (validators and penalties) (checked September 2026)
- ethereum.org: Proof-of-stake attack and defense (checked September 2026)
- Yahoo Finance: Ethereum USD (ETH-USD) historical prices (checked September 2026)
- FTC Consumer Advice: What to know about cryptocurrency and scams (checked September 2026)
- ethereum.org: Decentralized finance (DeFi) (checked September 2026)
- ethereum.org: How to identify scam tokens (checked September 2026)
- ethereum.org: Wrapped ether (ETH and the ERC-20 standard) (checked September 2026)
- ethereum.org: Ethereum security and scam prevention (checked September 2026)
- ethereum.org: How to revoke smart contract access to your crypto funds (checked September 2026)
- Etherscan Information Center: What is address poisoning? (checked September 2026)
- ethereum.org: Layer 2 (checked September 2026)
- MetaMask Support: Funds sent on the wrong network (checked September 2026)
- ethereum.org: Scam help (what to do if you have been scammed) (checked September 2026)
