Neighbors universal garage remote occasionally activates my 202U

As the title states, my neighbor opened my garage today with a universal remote but was unable to close it. I cleared all of my stored codes in the receiver and reprogrammed my two remotes. What else can I do to ensure that only my remotes activate my receiver?

What’s your 202u version?
And what’s your neighbour’s universal garage remote look like?

Our 202u offers same security as Liftmaster security+ /security+ 2.0 system, so you don’t need to do anything else, the chances of code collision is pretty small.

I believe I have v5. I am not sure what the universal remote looks like, but I’m sure I could find out.

Sure, just let me know if you have further questions, thanks.

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