On Black Friday, a shooting at California’s Westfield Valley Fair mall sent crowds running and hiding behind locked shop gates. This article doesn’t teach “how to press SOS” — it explains why, in real emergencies, people rarely have the ability to operate their phones, and why we need systems that can automatically alert trusted contacts when we can’t.

Black Friday 當天，加州 Westfield Valley Fair 商場發生槍擊，現場民眾一邊逃命、一邊躲進店裡封門。這篇文章想談的不是「怎麼按 SOS」，而是殘酷現實：逃跑時沒人有空開功能，中彈後更不可能操作手機，因此真正需要的是在人失能之後也能自動發出求救訊號的機制。

Many people assume that turning on location sharing automatically increases safety, but in reality location sharing safety is far more complex. This article explains how constant tracking can become a tool of control and abuse, and why SafeGuard focuses on on-device detection and auto-SOS instead of 24/7 live maps.