If you lose your crypto wallet, it is possible to recover the funds and get them back. However, there are a few things that you should keep in mind before doing so. First of all, make sure you have backed up your wallet address or private key somewhere safe. If not, be sure to do so immediately after every transaction. Second, if possible use something like Google Authenticator for two factor authentication on any online accounts that hold significant amounts of value (such as an exchange account). Finally, don't forget about cold storage. This means keeping your wallets on a device that does not connect to the internet (like a USB key) for extra security. In the case of a crypto wallet hack, there are three possible approaches to recovery: 1. Get help from an experienced crypto hacker (a process called “hacking”) - This can be very expensive and is only recommended if your funds were stolen through malicious means (such as malware attached to a phishing email). 2. Use paper backups or cold storage wallets - These are not always 100% secure, but they are much safer than online wallets. Paper backups can be printed off and stored in multiple locations for added security. Cold storage involves storing the private keys offline on hardware that does not connect to the internet at all (for example, it could be an offline computer with a USB drive containing them). 3. Trade back into fiat currency - It is possible to use exchanges such as Poloniex or Bittrex to trade back into USD/EUR/etc., which you can then cash out into your bank account using Western Union or another money transfer service. You should never use this option unless you have exhausted all other options first!