Which account is used to start the “Trend Micro IM Security Server” and “Trend Micro IM Security System Attendant” services?

IM Security uses the account configured during installation to start the “Trend Micro IM Security Server” and “Trend Micro IM Security System Attendant” services.

$('#title').html($('meta[name=description]').attr('content'));

Which account is used to start the “Trend Micro IM Security Server” and “Trend Micro IM Security System Attendant” services?