@henrya34 just to add to the answer from @Nash I wanted to call out that for the security of the Meraki Dashboard itself, remember to check out the Organization > Settings page, where you can enable things like 2 factor authentication, restrict login IP ranges, set password complexity requirements and account lockout mechanisms, etc.
Also note that you have complete RBAC control of all admins, and there are self-maintaining immutable spreadsheets in the Meraki Dashboard for every successful and/or failed login attempt, and a complete change log with every change made by every admin, what they changed, old/new values, and it is fully searchable, sortable, and exportable.
Finally, for most back-end security related items, there is a section of the web site on that here: https://meraki.cisco.com/trust
Let us know if other questions.