im not a AI expert or anything but i think everything which is on the internet can be hacked, nothing is 100% safe.
but dont worry, AI companies like chatgpt or claude are mostly safe. they spend billions of dollars on security and thats what makes them secure. they aint perfect but for normal use your fine.
just please keep your password safe, dont share it with anyone, use a unique password for every account and turn on 2FA. dont paste your bank details or id numbers or anything really private into any AI.
do that and you’ll be fine man, dont stress 👍