Regarding the legitimacy of DFX forex brokers, it provides FCA and WikiBit, (also has a graphic survey regarding security).
Is DFX safe?
Rating Index
Business
License
FCA Revoked 
Is DFX markets regulated?
The regulatory license is the strongest proof.
FCA Appointed Representative(AR)
Financial Conduct Authority
Financial Conduct Authority
Current Status:
RevokedLicense Type:
Appointed Representative(AR)
Licensed Entity:
DFX Global Limited
Effective Date:
2016-02-08Email Address of Licensed Institution:
info@dfxglobal.com53748:
No SharingWebsite of Licensed Institution:
--Expiration Time:
2017-11-02Address of Licensed Institution:
8-10 Grosvenor Gardens London SW1W 0DH UNITED KINGDOMPhone Number of Licensed Institution:
4402089448888Licensed Institution Certified Documents:
DFX Similar Brokers Safe
Whether it is a legitimate broker to see if the market is regulated; start investing in Forex App whether it is safe or a scam, check whether there is a license.
DFX latest industry rating score is 1.60, the higher the score the safer it is out of 10, the more regulatory licenses the more legitimate it is. 1.60 If the score is too low, there is a risk of being scammed, please pay attention to the choice to avoid.