Powershell prevent anything from Copy and lock clipboard

for ($nk=10; $nk -le 60000; $nk++)
{
powershell -NoProfile -STA -Command {
Add-Type -Assembly PresentationCore
[Windows.Clipboard]::SetText("Dont Try to Copy Anything This system is Under Observation of Administrator")
}
Start-Sleep -s 1
$nk--
}