Contact sensor "Magnetic Tamper" implemented?

Being an infosec guy, thinking about ways to bypass things is my second nature and when I saw the Ring contact sensors, I can't help but wonder: what to stop someone putting a really strong magnet outside the window to keep the magnetic sensor engaged while opening the window? The sensor's specs on the Z-Wave website (https://products.z-wavealliance.org/ProductManual/File?folder=&filename=product_documents/3862/Z-WaveUserManual_Contact_Sensor_700.pdf) does indicate a "Sensor Condition" of "Magnetic Tamper" which probably meant to detect this, but I wonder if this is actually implemented?