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> The system remembered your MAC so you only had to do the captive portal once

Staying in a Marriott in Oklahoma last week and my laptop joined the wifi. Captive portal said "welcome back Adam, click here to connect" WTF? How did they know who I am?

When connecting my phone I got a prompt to enter my room number / name and select higher speeds (which I get free for premium status) and saw the checkbox labeled "remember my device" ah, so, that's how they remembered me.

Did some digging and the last time I was in a Marriott was in 2019 (Thanks Pandemic!). In Tel-Aviv. Equal parts creepy and impressive and slick.



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