# Page Not Found

The URL `crypto-and-ai-ml/blockchain-security/front-end-risks/2.1-mfa-and-blockchain` does not exist.

You might be looking for one of these pages:
- [2.1 MFA and Blockchain](https://dev-angelist.gitbook.io/home/crypto-and-ai-ml/crypto-and-blockchain/blockchain-security/front-end-risks/2.1-mfa-and-blockchain.md)
- [2.3 OWASP Modeling for Blockchain](https://dev-angelist.gitbook.io/home/crypto-and-ai-ml/crypto-and-blockchain/blockchain-security/front-end-risks/2.3-owasp-modeling-for-blockchain.md)
- [Crypto & Blockchain](https://dev-angelist.gitbook.io/home/crypto-and-ai-ml/crypto-and-blockchain.md)
- [2.2 Front-end](https://dev-angelist.gitbook.io/home/crypto-and-ai-ml/crypto-and-blockchain/blockchain-security/front-end-risks/2.2-front-end.md)
- [2.4 Wallet Attacks](https://dev-angelist.gitbook.io/home/crypto-and-ai-ml/crypto-and-blockchain/blockchain-security/front-end-risks/2.4-wallet-attacks.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://dev-angelist.gitbook.io/home/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://dev-angelist.gitbook.io/home/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/home/crypto-and-ai-ml/crypto-and-blockchain/blockchain-security/front-end-risks/2.1-mfa-and-blockchain.md`)
- Use `Accept: text/markdown` header for content negotiation