Can a broker see your EA/indicators code & or can they manipulate it?

[FOREX.com]

@scalpingjack

Just curious! Was wondering what a broker can see at thier end when a trader uses an EA/indicator. Thanks

@BaconSandwich

I don’t know the answer to this, and i’m also very very curious, so +1 to the question!

Hi @scalpingjack and @BaconSandwich,

Based on our experience as the #1 FX broker in the US by retail client assets and one of the leading brokers worldwide in retail trading volume according to the latest industry reports, we can tell you FOREX.com can see the following when you run an expert advisor (EA) on your MT4 terminal with us:

1. Whether a particular order was placed by an EA or placed manually.
2. The Magic number
3. Any comments sent out by the EA when the order was placed. (Note, if you coded the EA yourself, you can determine what information is included in these comments.)

As your MT4 broker, we cannot see the following:

1. The code of your EA.
2. The reason(s) why your EA placed the order.

@bradley79

“just whether the trade is send manually, by mobile device or by EA

nothing else”

P.S That’s the case with an DMA/STP broker. Don’t know if the MM/DD brokers have more of an insight, and I forgot to ask.

@bradley79

That is why I advocate for traders to look for NDD brokers.

Hi John,

Trading with a well-regulated broker can go a long way towards addressing the concerns you raised about market maker execution.

However, based on your comments, you might be more interested in our new Direct Market Access (DMA) account designed for high volume traders (100K minimum trade size).