Is MetaMask Safe? Permissions, Privacy and Ownership Checked

Is MetaMask safe to use in 2026?

MetaMask is a trustworthy wallet, but it is a hot wallet living inside your browser, so your habits decide how safe it is. The software has been maintained by Consensys since the mid-2010s, its source code is public, and it runs a paid bug bounty. None of that stops you from typing your recovery phrase into a fake site.

It helps to separate two questions. First: is the MetaMask code itself likely to leak your keys? For the genuine extension, the answer has consistently been no, and the flaws that have surfaced were disclosed and patched. Second: can you lose money while using MetaMask? Absolutely, and almost always through a signature, an approval or a phrase you handed over yourself.

Safe for

Day-to-day balances, trying dapps, holding NFTs you would be sad but not ruined to lose, and acting as the interface for a hardware wallet.

Risky for

Life savings kept as a plain browser account, shared or work computers, and anyone who clicks sponsored search results to find the download or a dapp.

Not the wallet's fault

Drainer sites, address poisoning, fake support agents and malware on your computer. MetaMask can warn about some of these, but it cannot undo a signed transaction.

The rest of this guide walks through how the wallet protects you, what the extension can access, what data leaves your machine, and the specific settings that close the most common gaps. For how we judge any extension's trustworthiness, see our review methodology.

How does MetaMask protect your crypto?

MetaMask keeps your private keys encrypted on your own device and never holds a copy on its servers. That is what self-custody means: no company can freeze your funds, and no company can recover them for you either.

When you create a wallet, MetaMask generates a 12-word Secret Recovery Phrase (SRP). Every account in that wallet is derived from it. The extension stores the keys in an encrypted vault inside Chrome's extension storage, locked with the password you choose. That password only unlocks the vault on that one device; it is not a login to a MetaMask account, and MetaMask cannot reset it.

• Local encryption: the vault is useless without your password, which is why a strong, unique password still matters even though it is not an online login.
• Auto-lock: the extension locks itself after a period of inactivity, so an unattended laptop is less exposed.
• Transaction and signature previews: before anything moves, MetaMask shows what a site is asking you to approve or sign, and built-in security alerts can flag requests that look like known scams.
• Hardware wallet support: you can connect a Ledger or Trezor so keys never sit in the browser at all; MetaMask becomes the screen, the device becomes the signer.
• Public bug bounty: researchers are paid to report flaws privately through MetaMask's HackerOne programme instead of exploiting them.

Can a MetaMask wallet be hacked?

Yes, but in practice attackers go after the person, not the vault. Breaking MetaMask's encryption is far harder than tricking you into revealing your phrase or signing a transaction that hands over your tokens.

Notice that almost every row is a trick rather than a technical break-in. That is also why MetaMask's security alerts help but are not a guarantee: a brand-new drainer site may not be flagged yet.

Your wallet address alone is not a risk. It is public on the blockchain by design; someone can see your balance and send you tokens, but they cannot move anything out without your key or your signature.

What permissions does the MetaMask extension ask for?

A browser wallet needs to talk to the websites you use, so expect broad site access plus local storage. MetaMask injects a small connection object into pages so dapps can request your address and ask for signatures; that requires the ability to run on the sites you visit.

Permissions change between versions, so check the current list yourself rather than trusting any static summary, including ours. It takes under a minute:

1. Open chrome://extensions in the address bar.
2. Find MetaMask and click Details.
3. Read the Permissions list and the Site access setting. Broad access shows as 'On all sites'; see what that means on our all-sites permission page.
4. Before installing, open the Web Store listing and scroll to Privacy practices to see what data the developer declares it collects.
5. Compare the item ID in the listing URL with the official one: nkbihfbeogaeaoehlefnkodbefgpgknn. A different ID means a different extension.

Broad site access is normal for a wallet, but it is also why the wallet's own code matters so much and why lookalikes are dangerous: a fake with the same permissions can read everything you type into any page. The vault itself lives in extension storage, which other extensions cannot read directly; our storage permission explainer covers where extension data sits.

What data does MetaMask collect, and who owns it?

MetaMask is owned and developed by Consensys, and your main privacy exposure comes from the network endpoints it uses, not from your keys. Your keys stay on your device, but reading balances and sending transactions means asking a remote node, and that node sees requests from your IP address.

By default, MetaMask routes Ethereum requests through Infura, another Consensys service, along with other providers for some networks and features. In 2022 an update to Consensys's privacy policy spelled out that IP addresses and wallet addresses could be collected when transactions are sent, which caused a public backlash. The company said it would limit how long that data is kept. Policies can change, so read the current privacy notice linked from MetaMask's site rather than relying on a summary.

Settings that reduce what leaves your machine

• Analytics: MetaMask asks whether you want to share usage data (MetaMetrics). You can decline at setup or turn it off later under Settings → Security & privacy.
• Custom RPC: under Settings → Networks you can point a network at an RPC provider you trust or run yourself, instead of the default.
• Third-party lookups: the Security & privacy page has toggles for features such as fetching token details, NFT data and incoming transactions. Each one is a request to an outside service; turn off what you do not use.
• Separate accounts: using one address for public activity and another for holdings stops a single address from linking everything you own.

Menu names shift between releases, so if a toggle is not where we describe, search the settings page. The trade-off is convenience: switching off lookups can mean missing token names or incoming transfer notices until you refresh manually.

Has MetaMask ever been hacked or had security incidents?

There have been disclosed flaws and many scams around MetaMask, but the widely reported losses trace back to phishing, fakes and exposed phrases rather than a break-in to MetaMask's own systems. Knowing the history tells you where the real risk sits.

• iCloud backup warning (2022): MetaMask warned iPhone and iPad users that iCloud device backups could include the encrypted wallet vault, so a phished Apple ID plus a weak wallet password could expose funds. The advice was to turn off iCloud backup for the app or use a strong password.
• 'Demonic' disclosure (2022): researchers at Halborn reported that some browsers could save the recovery phrase to disk through form-restore features when importing a wallet. MetaMask patched it and paid a bounty. It is a good example of the bounty programme doing its job.
• Lookalike extensions and apps: fake MetaMask listings have repeatedly appeared in extension and app stores. They are removed when reported, but new ones keep arriving.
• Drainer kits and fake airdrops: organised groups run sites that request approvals or signatures to empty wallets. These hit users of every wallet, not just MetaMask.
• Fake support: scammers reply to public complaints on social platforms posing as MetaMask help, then ask for the phrase or send you to a 'sync' site.

The pattern is useful: keep the extension updated so patches reach you, and treat every request for your phrase as an attack. If you believe your phrase is exposed, create a new wallet on a clean device and move funds immediately; changing the password does not help, because the phrase bypasses it.

How do you set up MetaMask more safely?

Install from the official source, keep the phrase offline, and move savings behind a hardware wallet. Here is the order we recommend on a Windows, Mac or ChromeOS computer running Chrome:

1. Create a separate Chrome profile for crypto: click your profile picture at the top right, then Add. Install only the extensions you need there.
2. Go to the official download page by typing the address, and follow its link to the Chrome Web Store. Confirm the item ID ends in gpgknn.
3. Write your 12 words on paper, in order, and store them somewhere a fire or a burglar will not take with your laptop. Do not photograph them or save them in a cloud note.
4. Set a long, unique wallet password. It protects the vault if someone copies your computer's files.
5. Shorten the lock timer: open the MetaMask menu (three dots) → Settings → Advanced and set the Auto-lock timer to a few minutes.
6. Check that security alerts and phishing detection are on in Settings → Security & privacy.
7. Keep a small spending account in MetaMask and connect a hardware wallet for everything else, via the account menu → Add hardware wallet.
8. Every few months, review token approvals in a revoke tool and cancel any you no longer need.

On Android and iOS, MetaMask is a separate mobile app rather than an extension. The same rules apply, plus one more: check what your phone backs up to the cloud.

What are the downsides of MetaMask, and what is the safest crypto wallet?

The safest setup for meaningful sums is a hardware wallet, with MetaMask used only as the interface. MetaMask's downsides come from being a convenient hot wallet in a browser.

• Online exposure: the keys sit on an internet-connected computer next to every other extension and download.
• No recovery desk: lose the phrase and the funds are gone; sign a bad transaction and nobody can reverse it.
• Default privacy: unless you change RPC settings, requests go through providers that can see your IP address.
• Complex prompts: signature requests on some dapps are hard to read, which is exactly what drainers rely on.
• Swap and bridge fees: built-in swaps are convenient but include a service fee on top of network fees; compare before large trades.

A hardware wallet keeps keys on a separate device and asks you to confirm each transaction on its own screen, so a compromised browser cannot sign on your behalf. Exchanges are the other option: easier recovery through account support, but you are trusting the company to hold your coins, which is the opposite trade-off to self-custody.

If you are wondering whether you can withdraw money from MetaMask: it is not a bank account. To get cash, you either use the in-wallet sell option where it is offered through third-party providers in your region, or send funds to an exchange account and withdraw from there. Availability and fees vary by country and provider.

Which extensions make a MetaMask setup safer?

A few security tools reduce the risks around your wallet, but every extension you add is more code running next to it, so keep the list short. Put these in your normal profile, and only the essentials in your crypto profile. Browse more in our security and privacy category.

If you use a browser authenticator, compare Authenticator Pro as well, and read what each one stores locally before trusting it with exchange accounts. See our permissions index to decode any warning a new add-on shows before you click Add.