Gunshot detection firm ShotSpotter announced this week that it is changing its name to SST as part of an overall rebranding strategy, which includes the introduction of a new subscription-based model for its services. … Shrink increased by more than six percent worldwide in 2011, according to the results of new Global Retail Theft Barometer. The increase was attributed to a poor economy and an uptick in organized retail crime. … Monitoring services provider SentryNet is moving its Greenville, Miss., operations to a new office in Memphis. Company officials said in a statement that move was necessary if it wanted to be able to grow and remain competitive. … Micro Key Solutions, a provider of software for central monitoring stations, has promoted Victoria Ferro to president, succeeding Wayne Torrens who will take over as the company’s CEO. … Garda has acquired airport screening services provider Aeroguard for $16 million. The company will now be responsible for providing pre-board screening services in both the Central and Prairies regions in Canada under contracts totaling $1.07 billion in revenues over five years.