Apple AirDrop flaw ‘exposes phone numbers and email addresses’ to all We may earn a commission if you click a deal and buy an item. This is how we make money. Apple AirDrop flaw ‘exposes phone numbers and email addresses’ to all April 23, 2021 10:07 pm BST Apple’s AirDrop tech is a really handy way to share photos, contact information and more, but a security flaw could mean sharing details with more folks than you bargained for. Subscribe to our newsletter According to researchers at a prominent German university, the Wi-Fi and Bluetooth-powered Apple-to-Apple data transfer tech could expose your phone number and email address to a stranger in Wi-Fi range.