Cloud computing has been a hot topic in recent years, initially for storing assets such as shared files and backups, then for accessing remote computing services, and most recently for using cloud-based software that doesn’t even get installed on your computer. Today, cloud services are starting to be offered for security applications. What is this all about? Why is ’the cloud’ such an exciting topic, and what could it mean for security organizations and specific security applications such as Access Control? Is it more secure and reliable, or is it less secure?