Developer's DescriptionBy AviraPrevent your phone and SIM card from being wiped by unauthorized USSD commands.Avira USSD Android exploit is a free app that protects your phone and SIM card's contents from unauthorized deletion.What is an USSD attack?It's an attack against Android smartphones, which locks your SIM card and even deletes all the data on our phone, effectively resetting it to factory settings. You can get infected by visiting a malicious website, which are typically sent via SMS or by scanning a QR code.