Do Angle Grinder-Proof Bike Locks ACTUALLY Exist?
Briefly

Bicycle thefts are mostly unreported, with estimates of millions stolen annually globally. Locks resistant to angle grinders exist, but a perfect solution remains elusive.
Materials resistant to angle grinders can be heavy and costly, affecting practicality for cyclists. Balancing security against practicality is a key challenge in lock development.
Read at Discerning Cyclist
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