Cloud Solutions4 min read
Published Aug 02, 2026•The Data Dot Engineering Specialists
Essential Microsoft 365 Security Settings Every Office Must Audit
Default cloud configurations leave doors open for unauthorized access. Here are the 5 settings your IT administrator should turn on today.
Out of the box, Microsoft 365 defaults to permissive user settings designed for ease of setup rather than high security.
Crucial Security Baselines: - **Block Legacy Authentication**: Legacy protocols like IMAP/POP3 bypass multi-factor authentication entirely. Disabling them stops 95% of brute-force password spraying. - **Enforce Conditional Access**: Require devices to be company-registered and located in approved countries before granting access to corporate mailboxes. - **Automated Forwarding Rules**: Audit mailbox forwarding daily to detect covert data exfiltration rules created by compromised user accounts.
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