Cybersecurity is a major concern, particularly when it comes to digital access and who can interact with a server and its data. However, physical security can also present some huge challenges. Anyone with the right access can use or harm servers, even when in a locked facility. Data centers need to be protected from intruders and potential disasters such as water leaks, fires and cooling system failures. All security doors should be locked appropriately, with access only for vetted contacts. Even then, their exit and entry should always be logged.​