diff --git a/Identify and Block Shared Mailbox Signin/BlockSigninForSharedAndResourceMailbox.ps1 b/Identify and Block Shared Mailbox Signin/BlockSigninForSharedAndResourceMailbox.ps1
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+++ b/Identify and Block Shared Mailbox Signin/BlockSigninForSharedAndResourceMailbox.ps1	
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+<#
+====================================================================================================
+Name:           Identify and Block Sign-in for Shared Mailboxes in Microsoft 365
+Version:        1.0
+Website:        o365reports.com
+
+Script Highlights:
+~~~~~~~~~~~~~~~~~
+1. Export sign-in status report for all the resource and shared mailboxes into a CSV file, including: 
+    a. Shared mailboxes – Check sign-in settings for shared accounts. 
+    b. Room mailboxes – Track sign-in configurations for meeting rooms. 
+    c. Equipment mailboxes – Review sign-in status for assigned equipment. 
+2. Blocks sign-in for all shared mailboxes upon confirmation. 
+3. Allows to verify sign-in configuration for specific mailbox types and blocks them. 
+4. The script automatically verifies and installs the Exchange Online PowerShell and Microsoft Graph Beta modules (if not installed already) upon your confirmation. 
+5. Allows users to modify the generated CSV report and provide it as input later to block the sign-in on respective mailboxes. 
+6. Provides a detailed log file after disabling sign-in for shared and resource mailboxes. 
+7. The script can be executed with an MFA-enabled account too. 
+8. The script supports Certificate-based authentication (CBA).
+
+For detailed Script execution: https://o365reports.com/2025/03/25/identify-and-block-sign-in-to-shared-mailbox-using-powershell/
+====================================================================================================
+#>
+
+param (
+    [string] $CertificateThumbPrint,
+    [string] $ClientId,
+    [string] $Organization,
+    [string] $TenantId,
+    [Switch] $SharedMailboxOnly,
+    [Switch] $RoomMailboxOnly,
+    [Switch] $EquipmentMailboxOnly,
+    [string] $CSV
+)
+
+if($CSV){
+    if (-not (Test-Path $CSV -PathType Leaf)) 
+    {
+        Write-Host "Error: The specified CSV file does not exist or is not accessible." -ForegroundColor Red
+        Exit
+    }
+}
+
+Function ConnectModules
+{
+    $MgGraphBetaModule =  Get-Module Microsoft.Graph.Beta -ListAvailable
+    if($MgGraphBetaModule -eq $null)
+    { 
+        Write-Host "Important: Microsoft Graph Beta module is unavailable. It is mandatory to have this module installed in the system to run the script successfully." 
+        $Confirm = Read-Host Are you sure you want to install Microsoft Graph Beta module? [Y] Yes [N] No  
+        if($Confirm -match "[yY]") 
+        { 
+            Write-Host "Installing Microsoft Graph Beta module..."
+            try{
+                Install-Module Microsoft.Graph.Beta -Scope CurrentUser -AllowClobber
+            }
+            catch{
+                Write-Host "Error occurred : $( $_.Exception.Message )" -ForegroundColor Red
+                Exit
+            }
+            Write-Host "Microsoft Graph Beta module is installed in the machine successfully" -ForegroundColor Magenta 
+        } 
+        else
+        { 
+            Write-Host "Exiting. `nNote: Microsoft Graph Beta module must be available in your system to run the script" -ForegroundColor Red
+            Exit 
+        } 
+    }
+    $EXOModule=Get-Module ExchangeOnlineManagement -ListAvailable
+    if($EXOModule.count -eq 0)
+    {
+        Write-Host "Important: Exchangeonlinemanagement module is unavailable. It is mandatory to have this module installed in the system to run the script successfully." -ForegroundColor Red
+        $Confirm = Read-Host Are you sure want to install module? [Y] Yes [N] No
+        if($Confirm -match "[yY]")
+        {
+            Write-Host Installing Exchange Online Powershell module
+            try
+            {
+                Install-Module -Name ExchangeOnlineManagement -Repository PSGallery -AllowClobber -Force -Scope CurrentUser
+            }
+            catch
+            {
+                Write-Host "Error occurred : $( $_.Exception.Message)" -ForegroundColor Red
+                Exit
+            }
+            Write-Host ExchangeOnline installed successfully -ForegroundColor Green
+        }
+        else
+        {
+            Write-Host "EXO module is required. Please Install-module ExchangeOnlineManagement."
+            Exit
+        }
+    }
+
+    try
+    {
+        if(($TenantId -ne "") -and ($ClientId -ne "") -and ($CertificateThumbprint -ne "") -and ($Organization -ne ""))  
+        {   
+            Write-Host "Connecting to ExchangeOnline." 
+            Connect-ExchangeOnline -CertificateThumbprint $CertificateThumbPrint -AppId $ClientId -Organization $Organization -ErrorAction stop -ShowBanner:$false
+            Write-Host "ExchangeOnline connected successfully" -ForegroundColor Green
+            Write-Host "Connecting to Microsoft Graph."
+            Connect-MgGraph -TenantId $TenantId -ClientId $ClientId -CertificateThumbprint $CertificateThumbprint -ErrorAction stop | Out-Null
+            Write-Host "Microsoft Graph connected successfully" -ForegroundColor Green
+        }
+        else
+        {
+            Write-Host "Connecting to ExchangeOnline"
+            Connect-Exchangeonline -ErrorAction stop -ShowBanner:$false
+            Write-Host "ExchangeOnline connected successfully" -ForegroundColor Green
+            Write-Host "Connecting to Microsoft.Graph."
+            #Import-Module Microsoft.Graph.Authentication
+            Connect-MgGraph -scopes "Directory.AccessAsUser.All" -ErrorAction Stop | Out-Null
+            Write-Host "Microsoft Graph connected successfully" -ForegroundColor Green
+        }
+    }
+    catch
+    {
+        Write-Host $_.Exception.Message -ForegroundColor Red
+        Disconnect-ExchangeOnline -confirm:$false
+        Exit
+    }
+}
+
+Function WriteToLogFile ($message)
+{
+    $message >> $global:logfile
+} 
+
+Function CheckMailboxSigninStatus
+{
+    param(
+        $ExoMailbox 
+    )
+    $mailbox = Get-MgBetaUser -Userid $ExoMailbox.userprincipalname 
+    $DisplayName = $mailbox.DisplayName
+    Write-Progress -Activity "`n  Retrieving Signin status for the mailbox: $DisplayName" -status "Mailbox count:$global:RetrieveCount"
+    $global:RetrieveCount++
+    $UserPrincipalName = $mailbox.UserPrincipalName
+    $AccountEnabled = $mailbox.AccountEnabled
+    $RecipientTypeDetails = $ExoMailbox.RecipientTypeDetails
+    if($RecipientTypeDetails -ne "SharedMailbox" -and $RecipientTypeDetails -ne "RoomMailbox" -and $RecipientTypeDetails -ne "EquipmentMailbox"){
+        Write-Host "$userprincipalname is not a shared/room/equipment mailbox" -ForegroundColor Red
+        return
+    }
+    if($AccountEnabled -and !$global:flag){
+        $global:flag = $true
+    }
+    $ExportResult = @{'Display Name' = $DisplayName; 'User Principal Name' = $UserPrincipalName; 'Account Enabled' = $AccountEnabled; 'Recipient Type Details' = $RecipientTypeDetails }
+    $ExportResults = New-Object PSObject -Property $ExportResult
+    $ExportResults | Select-object 'Display Name', 'User Principal Name', 'Account Enabled', 'Recipient Type Details' | Export-csv -path $global:ExportCSV -NoType -Append -Force
+}
+
+Function BlockSignin
+{   
+    Import-Csv $global:ExportCSV | ForEach-Object{
+        if($_.'Account Enabled' -eq $true){
+            $Displayname = $_.'Display Name'
+            Write-Progress -Activity "Updating signin status for the mailbox: $DisplayName" -status "processing:$global:UpdatedCount"
+            $global:UpdatedCount++      
+            $UserPrincipalName = $_.'User Principal Name'
+            try{
+                Update-MgBetaUser -UserId $UserPrincipalName -AccountEnabled:$false -ErrorAction Stop
+                WriteToLogFile " Successfully blocked signin for the mailbox: $UserPrincipalName"
+            }
+            catch{
+                WriteToLogFile " Error occured while trying to block the mailbox:  $UserPrincipalName  "
+                Write-Host "An error occurred for the mailbox: $UserPrincipalname" ": $( $_.Exception.Message )"
+            }
+        }
+    }
+    if(((Test-Path -Path $global:logfile) -eq "True")){
+        Write-host "The log file $global:logfile available in $global:Location" -ForegroundColor yellow
+    }
+}
+
+Function ConfirmationToBlock
+{
+    Write-Host "`n`nDo you want to proceed with blocking signin enabled mailboxes?  Yes[y] No[n]?"
+    $confirm = (Read-Host "Enter your choice").ToUpper()
+    if($confirm -eq 'Y')
+    {
+        Write-Host "Updating Mailbox Signin Status..."
+        BlockSignin
+    }
+}
+
+Function GettingMailbox
+{
+    param(
+        $RecipientTypeDetails
+    )
+    Get-EXOMailbox -RecipientTypeDetails $RecipientTypeDetails -ResultSize unlimited | ForEach-Object {
+        CheckMailboxSigninStatus -ExoMailbox $_
+    }
+}
+Function OutputFileCreation
+{
+    param(
+        $OutputFileName 
+    )
+    $global:ExportCSV = $OutputFileName + "Mailboxes_SigninStatus_" + ((Get-Date -format "MMM-dd hh-mm-ss tt").ToString()) + ".csv"
+    $global:logfile = "DisabledSigninLogFile_" + ((Get-Date -format "MMM-dd hh-mm-ss tt").ToString()) + ".txt"
+}
+
+#........................................................Execution starts here..................................... .........................
+#Calling Connection Function
+ConnectModules
+#To check whether the mailbox have accountenabled true 
+$global:flag =$false
+#No of mailboxes retrieved count 
+$global:RetrieveCount = 1
+#No of signin updated count
+$global:UpdatedCount = 1
+
+if($SharedMailboxOnly)
+{
+    $FileName = "Shared"
+    OutputFileCreation -OutputFileName $FileName
+    GettingMailbox -RecipientTypeDetails SharedMailbox
+}
+elseif($RoomMailboxOnly)
+{
+    $FileName = "Room"
+    OutputFileCreation -OutputFileName $FileName
+    GettingMailbox -RecipientTypeDetails RoomMailbox
+}
+elseif($EquipmentMailboxOnly)
+{
+    $FileName = "Equipment"
+    OutputFileCreation -OutputFileName $FileName
+    GettingMailbox -RecipientTypeDetails EquipmentMailbox
+}
+elseif($CSV)
+{
+    $FileName = "Shared_Room_Equipment"
+    OutputFileCreation -OutputFileName $FileName
+    Import-Csv $CSV | ForEach-object{
+        $Mailbox = Get-EXOMailbox $_.'User Principal Name'
+        CheckMailboxSigninStatus -ExoMailbox $Mailbox
+    }
+}
+else
+{
+    $FileName = "SharedandResource"
+    OutputFileCreation -OutputFileName $FileName
+    GettingMailbox -RecipientTypeDetails SharedMailbox,RoomMailbox,EquipmentMailbox
+}
+
+$global:Location = Get-Location
+
+Write-Host `n~~ Script prepared by AdminDroid Community ~~`n -ForegroundColor Green
+Write-Host "~~ Check out " -NoNewline -ForegroundColor Green; Write-Host "admindroid.com" -ForegroundColor Yellow -NoNewline; Write-Host " to get access to 1800+ Microsoft 365 reports. ~~" -ForegroundColor Green `n
+
+#Invoking outputFile
+if (((Test-Path -Path $global:ExportCSV) -ne "True")) {     
+    Write-Host "`nNo Mailboxes matches the given criteria." -ForegroundColor Cyan
+}
+else {
+    Write-Host "`nThe output file $global:ExportCSV is available in  the $global:Location" -ForegroundColor Yellow
+        $prompt = New-Object -ComObject wscript.shell    
+        $userInput = $prompt.popup("Do you want to open output file?", 0, "Open Output File", 4)    
+        if ($userInput -eq 6) {
+            Invoke-Item "$global:ExportCSV"
+        }
+    if($global:flag){
+        ConfirmationToBlock
+    }
+    else{
+        Write-Host "Signin status has been already disabled for all the mailboxes" -ForegroundColor Cyan
+    }
+}
+
+Disconnect-ExchangeOnline -confirm:$false
+Disconnect-Mggraph | Out-Null
+