How to invest in cryptocurrencies?

For those seeking to venture into the world of cryptocurrencies, it's crucial to understand the fundamentals before making any investments. Could you elaborate on the key steps to investing in cryptocurrencies? Firstly, research is paramount. Understanding the technology, market trends, and potential risks associated with each coin or token is essential. Secondly, establishing a diversified portfolio is recommended to mitigate risk. Should one focus solely on Bitcoin or should they consider altcoins? Additionally, how should investors determine the appropriate timing for their investments? Furthermore, could you discuss the importance of using secure wallets and platforms for storing and trading cryptocurrencies? Lastly, what advice do you have for beginner investors looking to get started in this dynamic and often volatile market?