Got this question again today. “Is cloud secure?”
Nothing really is completely secure, if it is still plugged in. But in overwhelming majority of cases, cloud security is much better than the one you can implement inside your own premises.
Yes, using the cloud introduces new risks. If they are too much to manage and outweigh the benefits, then “hey you, get off of my cloud!” But, as my friend says, it is “highly unlikely”.
To answer the question, most cloud services are more secure than whatever you can do yourself, but that doesn’t lift the risks and responsibilities from you completely, just changes the landscape.