Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue
#Any web application associated with SSS proxy application or central admin
$WebAppURL="https://collaboration-int.bauer-de.bauermedia.group"
 
#Establish the Context
$Provider = New-Object Microsoft.Office.SecureStoreService.Server.SecureStoreProvider
$Provider.Context =  Get-SPServiceContext -Site $WebAppURL
  
#Get All Target Applications
$TargetApps = $provider.GetTargetApplications()
foreach ($App in $TargetApps)
{
    Write-Output $App.Name
     
    #Get the credentials for the App
    $Credentials = $provider.GetCredentials($App.Name)
    foreach ($Cred in $Credentials)
    {
        $EncryptString  = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($cred.Credential)
        $DecryptString  = [System.Runtime.InteropServices.Marshal]::PtrToStringBSTR($EncryptString)
  
        Write-Output "$($cred.CredentialType): $($DecryptString)"
    }
 }