Seedha jawab: bina consent ke kisi aur ki Facebook messages dekhna illegal/unsafe hai—jo apps “bilkul anonymous” bolti hain, aksar scam ya malware hoti hain. Agar aap legal parental control chahte ho (apne bacche par) aur physical access + proper permission hai, to mSpy (https://www.mspy.com/) sabse reliable hai Messenger monitoring ke liye—install karna padta hai (kabhi-kabhi root/jailbreak/backup access), aur phir bhi detect hone ka thoda risk rehta hai. TL;DR: secretly spying ka “safe” tareeqa nahi; legit parental control chahiye to mSpy, warna baat karke consent lo.