IQ Option does not accept traders from the following countries: Australia, USA, Belgium, Canada, Iran, Israel, Japan, Latvia, North Korea, Pakistan, Palestine, Russia, Sudan, Syria and Turkey.
There are, however, many other very good brokers with a very similar offer that accept traders from your country. Australian traders should definitely have a look at Plus500.com an ASIC regulated company offering Cryptocurrencies, options, forex and other CFDs products.
If Plus500 does not accept traders from your country, which is, for example, the problem of US traders, you can use for cryptocurrency trading Coinbase, one of the largest crypto exchange.
When trading with real capital, your funds are at risk.