Crypto Wallet Safety Q&A
30 questions for beginners, risk reviewers, opportunity users, and users learning on-chain basics.
Is it safe to enter a wallet address?
Yes. A public wallet address is already visible on block explorers, and an address alone cannot move funds.
Does ChainRadar connect to my wallet?
No. ChainRadar only reads public addresses. It does not connect to wallets, request signatures, or read private keys or seed phrases.
Can someone steal coins if they know my address?
No. The real risks are leaking a private key or seed phrase, or signing and approving on unknown websites.
Why should I never enter a seed phrase?
A seed phrase controls the wallet. Any website asking for it should be treated as high risk.
What is the difference between signing and approval?
Signing confirms a message or transaction. Approval allows a contract to spend a token. Read both carefully.
What should a new wallet check first?
Confirm the address format, receiving chain, and unknown transfers first, then test with a small amount.
Beginner safety
Is it safe to enter a wallet address?
Yes. A public wallet address is already visible on block explorers, and an address alone cannot move funds.
Does ChainRadar connect to my wallet?
No. ChainRadar only reads public addresses. It does not connect to wallets, request signatures, or read private keys or seed phrases.
Can someone steal coins if they know my address?
No. The real risks are leaking a private key or seed phrase, or signing and approving on unknown websites.
Why should I never enter a seed phrase?
A seed phrase controls the wallet. Any website asking for it should be treated as high risk.
What is the difference between signing and approval?
Signing confirms a message or transaction. Approval allows a contract to spend a token. Read both carefully.
What should a new wallet check first?
Confirm the address format, receiving chain, and unknown transfers first, then test with a small amount.
Risk review
Why does a wallet show no assets?
It may be a new address, assets may be on another chain, indexing may be delayed, the API may be rate limited, or low-value tokens may be filtered.
What is approval risk?
Approvals allow contracts to spend tokens up to a limit. Old or unlimited approvals should be reviewed.
What are spam tokens?
Spam tokens are usually worthless or bait airdrops. Do not open their promotional links casually.
Why do different tools show different results?
Different tools use different data sources, chain coverage, refresh timing, and token filters.
Does a low wallet health score always mean danger?
Not always. A low score may come from incomplete data, complex assets, or many interactions. Read the reasons.
When should I revoke approvals?
Consider revoking when the spender is unknown, unused, too broad, or from a suspicious site.
Opportunity judgment
How should I read stablecoin yield?
Do not only look at APY. Check TVL, lock-up, withdrawal speed, protocol risk, and gas costs.
Is higher APY always better?
Not always. High yield often comes with higher risk, liquidity limits, or unsustainable rewards.
Are airdrop opportunities reliable?
Airdrop rules change. Treat them as watch tasks, not guaranteed income.
Who are exchange starter offers for?
They help beginners learn sign-up and basic tasks, but users should not deposit or trade blindly for rewards.
Is DeFi suitable for small balances?
Small balances must consider gas costs. Complex DeFi actions may not be worth it.
Why does Opportunity Radar only give suggestions?
Opportunities depend on markets, project rules, and personal risk tolerance. The tool only gives screening ideas.
On-chain basics
What is an Ethereum address?
An Ethereum address is a public account identifier starting with 0x. It can receive funds and show on-chain records.
What is gas?
Gas is the transaction fee on-chain. Complex actions and network congestion make it higher.
What is a transaction hash?
A transaction hash is the transaction ID used to check status on a block explorer.
What are hot and cold wallets?
Hot wallets are online and convenient but riskier. Cold wallets are better for long-term storage.
What are cross-chain assets?
Cross-chain assets exist on different blockchains. Ethereum-only checks may not show assets on other chains.
Why check fund source?
Fund source helps judge whether money came from an exchange, personal address, contract, or suspicious address.
Data and reports
What data does ChainRadar use?
It uses Ethplorer assets and transfers, Public Ethereum RPC, DefiLlama Yields, and a local label set.
Is the report real-time?
The report reads live public data when possible, but third-party APIs may be delayed, cached, or rate limited.
What is the data status row for?
It tells whether asset, transfer, RPC, and yield data are available, preventing misread results.
Is the report investment advice?
No. It is educational and does not provide investment, tax, legal, or custody advice.
Why only Ethereum?
This version prioritizes Ethereum mainnet. Multi-chain coverage needs additional data sources and risk models.
Is saving a report safe?
Saving a report only copies the public analysis summary. It does not save private keys, seed phrases, or connect wallets.