Blocking Personal Outlook and Gmail Accounts on Corporate Device
Hello Community, In my organization, we use the Microsoft 365 environment. We have a hybrid infrastructure, but we aim to deploy as many policies as possible through Microsoft 365 (Intune, Purview, Defender, etc.). One of our goals is to limit the use of corporate devices for personal purposes. We use Outlook as our corporate email service, and we would like to block employees from signing into their personal email accounts (either via web or desktop application). Additionally, we would like to block access to other email services, such as Gmail, both via web and desktop apps. Could you provide guidance on how to achieve this? I would greatly appreciate any help or suggestions. Thank you very much! Juan Rojas
Ingesting Purview compliance DLP logs to Splunk
We are in the process of enabling Microsoft purview MIP DLP for a large-scale enterprise, and there is a requirement to push MIP DLP related alerts, incidents and data to Splunk SIEM. Could not find any specific documentation for the same. researched on this and found below solutions however not sure which could work to fit in our requirement: Splunk add on for Microsoft security is available: The Splunk Add-on for Microsoft Security is now available - Microsoft Community Hub but this does not talk about Purview DLP logs. This add-on is available for Splunk but only says MIP can be integrated however does not talk about DLP logs: Microsoft Graph Security API Add-On for Splunk | Splunkbase As per few articles we can also ingest Defender logs to Azure event hub then event hub can be connected to splunk. Above mentioned steps do not explain much about Ingestion of MIP DLP raw data or incidents. If anyone has done it in the past I will appreciate any input.
User app registration - exploitable for BEC?
Hello. Recently dealt with a case of BEC. I'm not trained in forensics, but doing my best. Appears the hacker used an application called eM Client for their attack, getting access to a user's mailbox and hijacking a thread. I can see the login from two weeks ago (the incident was only noticed a couple days ago, however) - from a European country that SHOULD have been blocked by Conditional Access. Come to find out, the tenant conditional access was unassigned from everyone. We're not sure how - we re-enabled it, and audited changes, but the only change that appears was us re-enabling it. Which I thought indicates it was never configured right, except we've got a ticket documenting a change to Conditional Access a couple days after the hack that ALSO does not appear in the logs. So... it's likely it was changed, yet I have no record of that change (atleast, not through Entra > Monitoring > Auditing). If anyone knows any other ways of checking this, please advise - but I can't seem to even access our Diagnostic settings, the page tells me I need an Azure Active Directory subscription (I'm on Entra ID P1, which includes AAD.... this might be related to being global admin, and not Security Admin - we don't use that role in this relationship) ANYWAY, my amateur forensic skills have found that the attacker used an app called eM Client to get access. I'm not sure yet how they obtained the password, and got past MFA... But quick research shows this application (esp it's pro version) is known for use in BEC. The app was registered in Entra, and granted certain read permissions in Entra ID for shared mailboxes, presumably to find a decent thread to hijack. I'm not 100% sure yet there was any actual exploit done using this app, but it's popularity amongst hackers implies it does SOMETHING useful (i think remember that it authenticates using Exchange Web Services instead of Exchange Online, or something similar? Will update when I have the chance to check). We're in the process of improving our Secure Score, and this incident makes me think user's ability to register apps should be locked down. Checked Secure Score for this, and while there ARE recommendations around apps, disabling user app registration is NOT one of them. Just curious about people's thoughts. I just barely understand App Registration in Entra, but if this is a known attack vector, I would think disabling app registration would be a security recommendation?Secure Score Improvement Recommended actions information sheet
Hello All I am starting a project to Improve our Secure score following the "Recommended Actions" section in the M365 Defender portal. Now each action comes with its own set of General information and remediation options. Rather than get the actions on each of the 208 recommendations by clicking through all the tabs and recording every step required to complete the recommendation , does anyone know if Microsoft has an Excel sheet with all the relevant Secure Score Improvement actions/information in one place? Will make running this project so much easier! Thanks in advance ! Kind Regards Christo
Website incorrectly flagged as security threat (Safe Links false-positive)
Hi, Our SaaS-website atleta.cc is currently incorrectly flagged as security threat by Microsoft Defender / Safe Links. This is causing trouble for clients and customers of clients in Outlook, Edge etc. Where can we report this false-positive, or request removal from the block list? Thank you! Greetings, Jarno Example:How much time does it takes to update secure score on Defender portal?
Hi Folks, I have marked some of the recommended actions on secure score as "third party" or "alternate mitigation". Even after 10 hours I can see action is still marked as "to be addressed". How much time does it take for changes to show up there? And also, how much time will it take to get this add up to my cumulative secure score?
When running New-DkimSigningConfig getting "Error in retrieving encrypted key"
I am trying to configure Dkim for a new custom domain name I have added to my tenant but receiving the error "Error in retrieving encrypted key" New-DkimSigningConfig -DomainName mydomainname.com -Enabled $false Error in retrieving encrypted key. + CategoryInfo : InvalidArgument: (:) [New-DkimSigningConfig], ValidationException + FullyQualifiedErrorId : [Server=PN2P287MB0256,RequestId=118bbafe-fead-42f2-b0de-ca595eba53b9,TimeStamp=25-08-2022 07 :28:38] [FailureCategory=Cmdlet-ValidationException] 2C2648B2,Microsoft.Exchange.Management.SystemConfigurationTasks.N ewDkimSigningConfig + PSComputerName : outlook.office365.com
Security baseline + data protection baseline for M365
Hello, I am trying to add a Secrurity baseline + data protection baseline for M365 in Compliance assessments. Both of them are showing me an incomplete status. I can't find anywhere why and what it needs from me to change the status. Any advice please where I can check it why!? Thank you very muchPL-200 Exam Success Story
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