# Crypto on mobile Besides desktop at PC or MAC, some users prefer to use mobile to access their crypto investment. Please always be careful about the approval in different protocol(Dapp). If a protocol gets hacked, you will be probably losing your assets. You can do few things to make sure your own safety. * Use a cold-wallet * Only approve necessary amount on each protocol. * Check [WEAVE streaming event 003 ](/product-docs/resources/weave-academy/weave-streaming-events.md#weave-streaming-003-stay-safe-in-your-crypto-journey-tips-i-wish-i-knew-early-on)to learn tips about staying safe in crypto!! --- # 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://gitbook.weave.financial/product-docs/resources/weave-faq-for-new-user/weave-tutorial/crypto-on-mobile.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.