Privacy Policy for Electrum ETH

1. Wallet app: what we do and do not see

Electrum ETH is designed as a non-custodial client. The wallet runs on your device and uses Ethereum and L2 nodes to broadcast and read transactions. By default, we do not operate a central account system.

We do not collect or store

• Your seed phrase or recovery words.
• Your private keys or signing keys.
• The raw contents of transactions that you sign locally (beyond what is visible on public blockchains once broadcast).
• Your on-chain balances in a way that links them to your name, email, or other off-chain identity.

Data stored locally on your device

The app stores certain data only on your device in encrypted or structured form, for example:

• Wallet descriptors and public addresses.
• Labels, notes, and account nicknames you create.
• Settings such as preferred networks, fee presets, and interface preferences.

This information is not automatically synced to our servers. You are responsible for securing your device, managing backups, and deciding where to store your recovery phrase.

Network and routing data

To operate, the app needs to query Ethereum and supported L2 networks. Depending on your configuration, this may involve:

• Querying node providers for balances, transaction history, and fee estimates.
• Fetching routing suggestions and gas estimates across configured networks.

These requests may expose your IP address and general device information to the node or service you connect to (whether that is run by us, a third-party provider, or your own node). You can usually change node providers in the app settings, including using your own infrastructure.

Crash reports and diagnostics

If the app offers built-in crash reporting or “send diagnostics” options, these are either:

• off by default, or
• clearly described and controlled by you.

Diagnostics may include:

• App version, operating system, and basic device model.
• Non-sensitive logs around the error (for example, which part of the UI failed, but not private keys or seed phrases).

We use this information solely to fix bugs and improve stability.

2. Website, docs, and downloads

When you visit our website, documentation, or download pages, we receive some information automatically, as is standard for most websites.

Download verification

When you download Electrum ETH, we may count downloads by operating system and release version. This helps us maintain mirrors, bandwidth, and release quality. We do not bind these download events to your real-world identity.

3. Cookies and local storage

We aim to keep cookies and similar technologies to a minimum and prioritise functionality over tracking.

Types of cookies we may use

• Strictly necessary cookies – used to deliver core functionality (for example, remembering language settings or protecting forms against abuse).
• Functional / preference cookies – used to remember simple choices you make on the site (for example, hiding certain banners once dismissed).
• Analytics cookies – used only where compatible with applicable law and, where required, with your consent.

How to control cookies

You can typically control cookies through your browser settings, including blocking or deleting them. Doing so may affect certain site features but will not affect how the Electrum ETH desktop app works on your machine.

4. Service providers and third parties

To operate and improve Electrum ETH, we may rely on carefully chosen third-party services. These can include:

• Infrastructure and node providers for Ethereum and L2s.
• Hosting providers for the website, docs, and downloads.
• Issue trackers, CI/CD, and crash reporting platforms.
• Support or email delivery services.

We require these providers to handle data in line with appropriate contractual and security standards and use it only for the services they provide to us.

Links to other services

Our website and app may contain links to third-party sites or services (for example, block explorers or community platforms). We are not responsible for their privacy practices. We encourage you to review the privacy policies of any third-party services you use.

5. How we protect information

Security is a core part of Electrum ETH’s design. While no system can be perfectly secure, we take appropriate steps to protect the information we process.

6. Legal bases and your privacy rights (EU/UK and similar regimes)

Where applicable data protection laws (such as the GDPR or UK GDPR) apply, we typically rely on the following legal grounds for processing personal data:

• Performance of a contract – to provide the wallet and related services you choose to use.
• Legitimate interests – for example, improving the app, maintaining security, protecting against abuse, and understanding high-level usage.
• Consent – for optional features such as certain analytics or diagnostics, where required by law.
• Legal obligations – where we must retain or disclose data under applicable law.

Your rights

Depending on your jurisdiction, you may have rights such as the following:

• Right to access the personal data we hold about you.
• Right to request correction of inaccurate data.
• Right to request deletion of your personal data, subject to our legal obligations.
• Right to object to certain processing, or to ask us to restrict it.
• Right to withdraw consent, where our processing is based on consent.
• Right to lodge a complaint with a supervisory authority in your region.

To exercise these rights, contact us using the details in the “Contact us” section below. We may need to verify your identity before we can respond.

7. Data retention and international transfers

Retention

We keep personal data only for as long as necessary for the purposes described in this policy, including:

• For as long as needed to provide you with services or support.
• For a reasonable period to analyse and improve performance and stability.
• For as long as required by applicable law or to resolve disputes.

International transfers

Because Electrum ETH is a global project, data may be processed in different countries. Where we transfer personal data internationally and local law requires it, we will rely on appropriate safeguards (for example, contractual protections) to help ensure that your data remains protected.

8. Children’s privacy

Electrum ETH is intended for adults and is not directed at children under 18. We do not knowingly collect personal data from children. If you believe that a child has provided us with personal data, please contact us so that we can take appropriate action.

9. Changes to this policy

We may update this Privacy Policy from time to time, for example to reflect changes in the app, infrastructure, or applicable law. When we make material changes, we will update the “Last updated” date at the top of this page and, where appropriate, provide additional notice.

10. Contact us

If you have questions about this Privacy Policy, or about how Electrum ETH handles data, you can contact us at:

• Security issues: security@electrum.eth
• General privacy questions: privacy@electrum.eth (if available) or via the channels listed on our Community section.

For requests under data protection laws, please include enough detail for us to identify you and respond appropriately, but do not ever send your seed phrase or private keys.