Yes, but keep in mind that this needs to be done on a regular basis and that it is important not to do updates before it is safe to do the update. If you choose to do it yourself and it happens to go wrong, which can happen. You may need to hire a consultant to fix it, which may cost more than the service contract costs for a whole year.
If you have a service contract with us, we will restore your site at no extra cost in the event of an accident.
Unfortunately, there are viruses that can attack your website. If you keep your website updated, there is usually no problem, but if you haven't updated for a long time, security holes open up for viruses to attack. Read more about how to keep Wordpress secure.