I have been using ms office 2007, to be exact word 2007 ever since it came out. I have no use for any other thing it offers other than word 2007. I don't want to upgrade because I don't want to spend time studying new functionality in newer versions of office software..( i am lazy enough to take breath at times). So from the security standpoint should I upgrade? I am using windows 10 version 1909, with fsecure safe, Nvt exe radar pro in lock down mode and binisoft front end for windows defender firewall.