The United Arab Emirates has announced it is banning BlackBerry messaging, email and internet use.
The government claims the ban is due to security concerns because encrypted data sent on the devices is sent abroad, where it cannot be monitored for illegal activity. It says it is cracking down solely on the BlackBerry because it is the only smartphone that automatically sends users' data to servers overseas.
Analysts say this makes BlackBerry messages tougher to monitor than ones sent through domestic servers that authorities can access more easily.