How do we know our backups actually work?+
A restore proves it: real data brought back to a separate place, opened and checked, with the time it took written down. The Canadian Centre for Cyber Security asks organizations to test recovery from backup on a routine basis. When the last restore test at your office is more than a few months old, or unknown, a timed test is the first thing we do, and its result goes into a short dated note.
What is the 3-2-1 backup rule?+
Three copies of your information, meaning the original and two backups, kept on two different types of storage, with one copy off-site. The Canadian Centre for Cyber Security recommends the rule and also advises keeping a backup offline. For ransomware its playbook goes further: two or more offline backups that the network and the internet cannot reach, encrypted and tested on a regular schedule.
Does Microsoft 365 back up our data by itself?+
Microsoft replicates your data to keep the service running, and it sells Microsoft 365 Backup as a separate pay-as-you-go product for SharePoint, OneDrive and Exchange. Retention policies and recycle bins work separately from that backup. The Canadian Centre for Cyber Security reminds organizations that they stay responsible for protecting their data in any cloud service, so the backup you need depends on how much you can afford to lose.
What are RTO and RPO in plain words?+
The recovery time objective, RTO, is how long a system can stay down before it starts to hurt the business. The recovery point objective, RPO, is the moment your data has to be brought back to, which sets how much recent work you could lose. Both come from NIST definitions. You choose the targets for each system; a timed restore test shows whether your backups meet them.
Will backups protect us from ransomware?+
Backups protect you from losing your data to ransomware, provided at least one copy is offline or immutable and was tested. The Canadian Centre for Cyber Security says offline backups may spare you the need to pay. Backups do nothing about data the attackers copied before encrypting it, which is why recovery is paired with incident response and with fixing the way the attackers got in.
How often should backups be tested?+
On a regular schedule that you write into the plan. The Canadian Centre for Cyber Security asks for routine tests of recovery from backup and gives monthly as an example in its ransomware playbook. We usually pair a quick monthly check of the backup jobs with a full timed restore of the most important system at an interval matched to how often that system changes.
How much do backup and disaster recovery services cost?+
The price depends on how many computers, servers, mailboxes and websites need copies, how much data there is, how fast each system has to come back, and whether we only check your backups or also set up what is missing. After a 30-minute conversation we put a fixed price for the agreed scope in a scope letter. Storage and licences are passed on at cost.