In October 2026, attackers got into 173 Microsoft 365 environments without stealing a single user password. They used a compromised credential belonging to a trusted backup app, so the apps connected to your business now need the same attention as your users’ accounts.
When a Trusted Tool Becomes the Way In
What are connected apps in Microsoft 365?
Connected apps are the backup, migration, CRM, e-signature and IT management tools that you or your IT provider have allowed to work with your Microsoft 365 data. Most were approved once, for a good reason, and then forgotten. Over time they build up access that nobody reviews.
How do I know which apps are connected to my Microsoft 365 right now?
Your administrator can list them in Microsoft Entra, but the harder part is judging which ones have more access than they need. TEKNOLOGIIA’s Tekno365 specialists can map every connected app, flag hidden risks and give you a clear, prioritized list. Book a cloud security review.
What should I do if my IT provider uses a tool that was in the news?
Ask the provider which apps they have connected to your tenant, what access each one has, and what they have done since the incident. If you would like an independent second opinion, contact the TEKNOLOGIIA team and we will review it with you.

