Yes it is too much risky I have seen it more than once on myself and my friends

Ke leba kehone ykrebesh iphoneu ena check madreg alebsh betam

Awo betam check madreg alebsh like software update adrgesh mknyatum activation lock yetederege lihon slemichl endeza yetederege kehone automatically yzegal

Too much risky.

megzat tichilaleh gin soft ware ena batry chek madreg alebih ena meche endetemerete le sint gize endagelegele maregaget alebih

Aw bedenb apple id kalw

As soon as my knowledge goes, there is no copy or refurbished of iphone. So no problem if u buy it. How ever u should check the battery and the hardware