# Security After years of development, the DeFi space has also accumulated billions of dollars in theft, such as in March this year when lending protocol Euler Finance suffered a hacker attack with losses amounting to $200 million. It allowed users to post collateral and borrow, and its problem occurred in a specific function that was not securely checked, allowing users to break basic invariants of the lending market. Most users lack a technical background and cannot judge if their trading or signing behaviors carry risks. Security auditing firms in the industry charge high fees and are beyond what average users can afford. Security is often an overlooked aspect in trading workflows, subtly impacting user behaviors and largely hindering mainstream adoption. --- # 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://rocket-3-1.gitbook.io/rocket-3/pain-point/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.