eToro
eToro is the multi asset brokerage company that was the first to introduce social trading on a mass scale. The eToro OpenBook enables investors to view, follow and copy the network's top traders automatically.
The main problem with eToro is centralization. eToro’s system is not asynchronous BFT. If bad actors are able to control eToro's servers and order books, the whole system is put at risk.
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