Your phone will blare a loud siren on September 7, 2025, at 3:00 PM as part of a nationwide emergency alert test. This 10-second warning will reach approximately 87 million mobile devices across the UK, testing a system designed to warn the public during life-threatening emergencies. The UK government announced the second nationwide test of its Emergency Alert System will send a message in both English and Welsh to all compatible devices. When activated, phones will vibrate and emit a loud siren sound even if set to silent mode. “Just like the fire alarm in your house, it’s important we … Continue reading UK Emergency Alert Test: 87 Million Phones to Sound Siren September 7 Even on Silent Mode