Is it safe to keep your all crypto currency at a single exchange (bitfinnix)?Or one should choose multiple exchanges.
As long as the exchange account used has a good reputation or isn't defective in the public eye I don't think it's wrong. By using one wallet precisely it will make your transaction'be easier and more practical, for example you use Nexybit Hybrid Exchange. With the
NEXYBIT wallet there you can save your coins (such as
BTC,
ETH,
AE,
ATM,
EXC,
GTO,
OMG,
TTC,
TUSD,
USDT,
ZIL and
ZRX).