Cloud storage breaches you hear about rarely involve someone breaking the provider's own encryption. They almost always involve a misconfigured sharing setting, a weak account password, or a link that was more public than the person who created it realized. The infrastructure is usually solid — the exposure happens at the settings layer, which is the part that's on you.
The setting that causes the most accidental exposure
"Anyone with the link can view" feels private because you didn't publish the link anywhere — but that link can be forwarded, indexed by a browser's history sync, or picked up if pasted into a chat or document that later gets shared more broadly than intended. For anything genuinely sensitive, use named-recipient sharing (invite specific people by email) instead of link-based sharing, so access can be reviewed and revoked individually.
A practical checklist
For businesses specifically
Set org-wide defaults that favor named sharing over public links, and restrict external sharing to approved domains where your provider supports it. A single employee's overly broad share of a sensitive folder is a far more common cause of business data exposure than any external attack on the platform itself.
The takeaway
Cloud storage security is mostly a configuration exercise, not a technical one. The provider handles encryption and infrastructure; the sharing settings, account password strength, and periodic review of what's actually shared are yours to manage.
