News of Note—AT&T, Amazon Prime, CBRS Alliance and more

> AT&T CEO Randall Stephenson took the witness stand Thursday to preach the benefits in store if his company is allowed to finalize its $85 billion deal for Time Warner, which the Justice Department is attempting to block. FierceVideo article

> The CBRS Alliance has released two specifications that aim to drive interoperability for devices that support the 3.5 GHz Citizens Band Radio Service, a shared swath of spectrum that cable operators are eyeing for wireless and mobile services. Multichannel News article

> Amazon Prime has locked up a five-year exclusive deal for live telecast rights in the United Kingdom and Ireland for the U.S. Open Tennis Championships. FierceVideo article

> AT&T announced that its 5G Evolution technology, which includes LTE Advanced features like 256 QAM, 4x4 MIMO and 3-way carrier aggregation, is now in parts of 117 new markets, bringing the total markets served to 141. AT&T’s 5G Evolution technologies can deliver theoretical peak speeds for capable devices of up to 400 megabits per second. FierceWireless article

> The internet of things (IoT) is proving to be an expanding universe of security vulnerabilities. Microsoft is proposing an approach to securing one corner of that universe, the part dependent on microcontrollers. The company has introduced an MCU it is calling Azure Sphere that has IoT security measures embedded in the design. FierceTelecom article