> For the complete documentation index, see [llms.txt](https://docs.common.fi/knowledge-base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.common.fi/knowledge-base/fraud-protection.md).

# Fraud protection

As privacy-preserving technologies grow more powerful, so does the responsibility to ensure they’re not exploited by malicious actors. **Shielder**—a zero-knowledge solution for private transactions—has been designed not only to offer user confidentiality, but also to discourage abuse proactively.

The protocol integrates key mechanisms that strike a balance between privacy and accountability. These include:

* **Auditable architecture** (while preserving user anonymity)
* **Optional compliance features** for institutional or regulated use cases
* Strategic safeguards that make it harder for bad actors to exploit the system without compromising honest users

For a deep dive into how Shielder is structured to resist misuse while maintaining its privacy promises, check out the documentation:

👉 [Design Against Bad Actors](/knowledge-base/protocol-details/design-against-bad-actors.md)