The Sahelay blog

Notes on keeping data recoverable

Straight talk on backup, restore testing, ransomware and Microsoft 365, from the people who test restores every day.

Backup & Recovery15 June 20268 min read

Does Microsoft 365 Back Up Your Data?

Short answer: mostly no, not the way most people assume. Microsoft keeps the service running, and your data is yours to protect and recover. Here's an even-handed look at native recovery, the first-party Microsoft 365 Backup product, the risks the defaults miss, and what a real backup adds.

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Backup & Recovery

How to Test If Your Backups Actually Work

A green 'backup successful' tick only proves the job ran. It says nothing about whether your data comes back. Here's how to test a backup restore step by step, the silent ways backups fail, how often to test, and the one number worth asking any provider for.

15 June 20268 min read