How does mql5 know whether a signal is trading by using EA or manual?

 
How does mql5 know  whether a signal is trading by using EA or manually?
 

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Форум по трейдингу, автоматическим торговым системам и тестированию торговых стратегий

Do brokers see the installed EAs

Renat Fatkhullin, 2017.02.19 13:22

The question constantly pops up, the answers were repeatedly given.

Never any broker sees and does not have access to the trader's computer, does not know and does not have access to his robots or any other programs.

But each order has a type of reason, which indicates how it was created - manually or by experts.

To be afraid of knowledge by the broker ("trader trades experts") does not make sense. At a huge number of brokers, the percentage of autotrading more than 50% of transactions - everyone understands that this is a new reality.

Reason: