This is a web-based interface that allows you to use Monero without running a full Monero node. However, because this convenience
comes at a cost: it is extremely difficult to securely deliver its code to your browser. This means that there is
considerable risk in using this service for large amounts!
It is recommended that you treat this service as you would treat your
actual wallet, and not store very large amounts in it. For long-term storage of Monero you should create a cold wallet using
MoneroAddress or similar.