Jeff is using a Chromebook to do the finances for his elderly father. Is it secure enough? Leo says YES! Chromebook's are very secure by design, and using them solely for online banking makes it VERY secure. Google does a lot to protect ChromeOS, and one can't modify it in any way. And if something goes wrong, users can powerwash it. The only risk may be browser extensions. So if users avoid those, they are golden.