Tribot is safe, we use it on accounts worth a lot more than most the people using it and nothing has happened. You've just got to me cautions while downloading it that you get the real version. Nod32 online scanner can help you do that.
The only reason people blame Tribot for their forfeiture is because they download false versions and buy from unsafe dealers. If you use NOD32 to scan, buy keys from trusted people you're good to go. They make too much money to take Runescape possessions from customers to risk loss.