Yes, as long as your Forex broker doesn’t restrict the IP addresses which can login to your trading account, you can login to your MT5 trading account from any where in the world with any devices at the same time.

It is very rare that your Forex broker restrict IP address for logging into your MT5 account, because it will cause login errors for the users’ sides. You should be also notified for any IP address restrictions for usage.

Logging into the same MT5 trading account from different devices at the same, doesn’t cause any troubles on your side such as connection error or execution delays.

You should be able to simply trade and manage anything in your trading account doing that.

If your trading server requires “SSL certificate”, then you will need to copy/move the certificate to the new computer, so you can login to the relevant account from the new computer too.

If you believe someone else has logged into your MT5 account, you are recommended to setup “One Time Password” as soon as possible.

To do that, please install mobile version of MT5 and “bind” your trading account to the app.

For more information about the security of MT4 and MT5 platforms, and usage of these platforms, please refer to Online Forex Brokers‘s websites.