I don't recall ever installing Apple Remote Desktop yet it appears in my updates.

I don't recall ever installing Apple Remote Desktop yet it appears in my recent updates. This is not something I would knowingly install because I'm not real keen on the whole remote access idea. But I don't know enough to know whether I should be concerned or not. Is this something that comes bundled in with other Apple programs by chance? Does having this on my computer make it more susceptible to intrusion/invasion? Could someone outside my own home network access my computer? I feel like there's something I'm forgetting to ask.. If anyone has any additional information they want to share, it would be helpful and much appreciated. Thank you for your time.