# SECURITY Security smart contracts are used to build decentralized security solutions, such as multi-signature wallets and identity management systems. * **Access control:** These contracts manage who has access to what resources, such as data, funds, and smart contracts. Examples include role-based access control (RBAC) contracts and identity and access management (IAM) contracts. * **Authentication and Authorization:** These contracts verify the identity of users and allow them to access resources only if they are authorized to do so. Examples include two-factor authentication (2FA) contracts and know-your-customer (KYC) contracts. * **Cryptography:** These contracts use cryptographic techniques to protect data and systems from unauthorized access. Examples include encryption contracts and digital signature contracts. * **Auditing and Monitoring:** These contracts track and record activity on the blockchain to detect and prevent fraud and other malicious activity. Examples of auditing and monitoring contracts include transaction monitoring contracts and intrusion detection system (IDS) contracts. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://sinqlarity.gitbook.io/sinqlarity-docs/use-cases/security.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.