Bike security refers to the measures taken to protect bicycles from theft and vandalism. Common methods include using sturdy locks, such as U-locks or chain locks, to secure the bike to a fixed object. Additionally, parking in well-lit, busy areas can deter potential thieves. Another important aspect of bike security is registering the bicycle with local authorities or online databases. This can help recover stolen bikes and deter theft, as thieves are less likely to target registered bicycles. Accessories like GPS trackers can also enhance security by allowing owners to locate their bikes if stolen.