“Safe” is not binary. It’s a scale.
When you put things in the cloud, there are now some attack possibilities that didn’t exist before (trusting people at your cloud provider is one0.
However, you also get some new defense possibilities that didn’t exist before. One example is that in the past, many companies couldn’t afford to, or didn’t bother to update software and hardware when vulnerabilities are discovered. In the cloud, that is often handled for you, by specialists.
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