Internet shopping is not more risky than in the actual world. There are always good guys and bad guys. However, some precaution does worth taking, just as the host posted above. I think the key point is to establish confidance in the cyber shop before doing mass acqusition. Rowing carefully, rowing safely.
1, Make sure the store is VIP registered of the website you are browsing.(B2B)
2,Find company website which includes its address, office phone number,email etc.(B2C is not included)
3,Shop on a trustable and well-known site which has third party guarantee like Alibaba or made-in-china,Amazon,Aliexpress etc.
4,Try to shop somewhere your friends or families have done before, if it’s large quantity, try small order after a few months chat.