Tanzania is one of the safest countries in Africa, and also among the most commonly visited. There are some risks involved, of course, as there are with traveling anywhere, and it’s important to use common sense and be aware of your surroundings.
Though pickpocketing happens in certain areas, violent crime against foreigners is quite rare, so you can rest assured that there’s little risk. There are, however, occasional safety advisories, so be sure to check travel warnings before you go.