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iPhone Apps Tracking Users Location Without Permission

Research conducted by Bitdefender claims that almost one in five Apple iPhone apps can access a user’s Address Book, while some 41 percent can track the users location and more than a thirds also store user data without encrypting it. The study of more than 65,000 apps distributed widely on the Apple App Store revealed … Read more

How Many Broadcast Channels & what’s it work in GSM ?

BCCH(Broadcast Control Channels) Downlink Only. Broadcast information of the serving cell (System Information). Transmitted on timeslot zero of BCCH carrier. Read only by idle mobile at least once every 30 secs. SCH (Synchronization Channels) Downlink Only Carries information for frame synchronization. Contains frame number and BSIC (Base Station Identity Code). FCCH (Frequency Correction Channels) Downlink … Read more