# FAQ #### When I can claim my rewards? We don't have any lock periods for rewards. You are able to claim it since the first block after the deposit. **How is Tetu different from previous yield aggregators?** Tetu is a multi product, multi chain decentralized protocol. Tetu is building a DeFi money lego with integrated strategies between different native products. **Is Tetu vulnerable to flash loan exploits?** Tetu will not be trading or swapping the underlying assets deposited into the vaults, but rather accept deposits in the form of LP tokens from other protocols. This derisks Tetu users from flashloan exploits. In the future, should the team and community decide to implement strategies that swap or trade the underlying assets within the vaults (albeit highly unlikely), an oracle solution will be implemented with an audit from a reputable security company. **What are the DEV funds used for?** The DEV funds are used to pay salaries to builders and contributors. **Do you have a time lock for your vaults and strategies?** Yes, Tetu smart contracts have a 48 hour time lock. **Does Tetu have a multisig wallet?** Yes, fund allocation and changes to the protocol require a 3/5 [multi-sig](https://docs.tetu.io/tetu-io/technical/security-overview/multi-sig) verification. **Is Tetu audited?** Yes, Tetu is audited by DeFiYield, PeckShield and CertiK. **Are there deposit or withdrawal fees?** There are neither deposit nor withdrawal fees. --- # 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://docs.tetu.io/tetu-faq/faq.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.