My mom checked into her hotel and noticed a tiny blue dot sticker on the door. She’s freaking out—what does a blue dot mean?.

✔ Hotel hallways are constantly monitored by cameras and staff.
Leaving markings increases risk of being caught.

✔ Verified police and FBI reports seldom mention door-sticker marking as a tactic.
Most verified cases involve manipulation, scams, or tailgating, not marking doors.

✔ Hotels regularly use stickers for operational reasons.
This explains 99% of sightings.

But—because we’re being realistic—there are situations where unusual markings warrant caution.

Let’s cover that next.