# Bitcoin privacy rating

Decentralized cryptocurrency and payment network. Every transaction, address and amount is recorded on a public blockchain, so payments are pseudonymous rather than private.

## Summary

Bitcoin scores 100 out of 100 (grade A) on the private cryptocurrencies criteria. It meets 4 of 4 criteria: open source, no trackers or telemetry, no ads or data sales and independent audit.

- Website: https://bitcoin.org
- Source code: https://github.com/bitcoin/bitcoin
- License: MIT
- Platforms: Windows, macOS, Linux
- Home page trackers: Cloudflare Web Analytics (cookieless analytics)
- Category: [Private cryptocurrencies](https://privacyratings.com/cryptocurrencies/)
- Grade: A (100/100)

## Criteria

| Criterion | Answer | Note | Evidence |
| --- | --- | --- | --- |
| Open source | Yes | The reference implementation, Bitcoin Core, is MIT licensed. | https://github.com/bitcoin/bitcoin/blob/master/COPYING |
| No trackers or telemetry | Yes | The bitcoin.org privacy policy describes only server logs with shortened IP addresses and a consent cookie, and Bitcoin Core contains no telemetry. | https://bitcoin.org/en/privacy |
| No ads or data sales | Yes | Open protocol and software maintained by an open source developer community, with no ads. | https://bitcoincore.org/en/about/ |
| Independent audit | Yes | Quarkslab published a full security audit of Bitcoin Core, arranged by OSTIF. | https://ostif.org/wp-content/uploads/2025/11/25-05-2133-REP-bitcoincore-security-assessment-V1.3.pdf |

Source: https://privacyratings.com/cryptocurrencies/bitcoin/
Edit: https://github.com/privacyratings/privacyratings.com/edit/main/ratings/cryptocurrencies/bitcoin.md