According to the Associated Press, Amazons Key for Business is a system that allows delivery drivers to access apartment buildings without being buzzed in. It has been installed in thousands across the US. According to reports, the company is pushing for more installations of the system in buildings using both $100 gift cards and free installation.This system makes it easier for Amazons drivers and their assistants to deliver to apartments. A driver does not need to be buzzed by residents or a concierge to gain temporary access via the Amazon Flex app. Once packages are delivered, they can be left with a doorman or in a safe mail room. Amazon published a technical description of the system in 2019 and stated that it increased first-time deliveries by 96 percent to around 98% in a pilot program.According to reports, building managers don't have to inform tenants about the system.It was first launched in pilot form in 2018. Key for Business, unlike the Amazon system that homeowners can install in their private homes, is installed by building managers. They are not required to notify tenants when the system has been used. Residents may be concerned about the security of an internet-connected device that allows drivers to access their buildings. This is according to Amazon.Amazon is apparently working hard to increase the number of buildings where the system can be installed. According to the Associated Press it is offering Key for Business to building managers, and partnering up with locksmiths to provide installations. Sometimes, this can be free. Amazon spokesperson was not available for comment and declined to confirm the number of installations.The system will make deliveries faster and easier, which could give Amazon's delivery drivers an advantage over their competitors. It is unlikely that buildings will install similar systems for multiple delivery firms, which could incentivize their residents to use Amazon.