PADONOW Alarm Bike Tail Light: Wireless Remote Bicycle Rear Light USB-C Rechargeable Smart Motion Anti Theft Taillight with Loud Horn Red Led Flashing Lights Waterproof High Lumen Cycling Back Light

Bike alarm is another layer you can add. A few companies make these rail lights that when armed, will set off an alarm if the bike is moved. https://www.amazon.com/PADONOW-Alarm-Bike-Tail-Light/dp/B09ZSJ3V4N/ref=pd_aw_subss_hxwPER_sspa_mw_detail_m_sccl_1_1/143-4366637-4071811?pd_rd_r=cf886726-2aaa-43a2-a29e-5b4671d2a01d&pd_rd_wg=msohU&pd_rd_w=fepzW&pd_rd_i=B09ZSJ3V4N&psc=1