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Thank you for your very useful guidance... I can open the fixedfloat site in Iran without vpn and there are no restrictions, but in this case I still need to use a filter breaker for more security... On the other hand, isn't it dangerous to use a filter breaker when doing your transaction?? Because someone told me that the vpn itself might become a problem for me and take away the security of my account and attack my currencies and steal or hack my wallet.