Various rules: Multiple providers will force you to contend with multiple rules and systems. It can become more complicated and time consuming for IT departments to monitor each one.
Unfamiliarity: With each cloud you adopt, you’ll have to become familiar with it and bring all employees up to speed. This can take time and effort.
Security: Monitoring all of these clouds can present some security challenges. For instance, it can be difficult to maintain a unified set of controls, which can cause security gaps.
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