Part of Managed Security Services
Most Microsoft 365 compromises start with a stolen identity, not malware. We watch sign-ins, mailbox changes and app permissions for the signs of account takeover, and respond when we see them.
A tenant administrator to approve access, a list of who should have administrator roles and where staff normally sign in from, and a contact who can act quickly when an account must be locked. We agree in advance which containment steps we may take immediately and which need your sign-off.
Once a threat actor holds a valid session, ordinary security tools often see nothing wrong. Watching the identity layer is how takeovers are noticed early, before a rule is set, a payment is redirected or data is read.
Core-Infosec investigates Microsoft 365 and business email compromise. That is the reason we watch the specific activity described above: it is what we find when we reconstruct real takeovers. It also pairs with managed email security and with CMDR.
Any organization that runs on Microsoft 365, and especially those that handle payments, client funds or sensitive records by email.
Tell us about your environment and what you want covered, and we will explain how this service would fit. Prefer to write? Email info@core-infosec.com or use the contact form. We reply to form and email enquiries by the next business day.
Coverage depends on the services selected and your environment.