What do ZTNA, ZTA, and Zero Trust mean?
ZTNA (Zero Trust Network Access) is the Zero Trust philosophy realised: ZTNA manages user access to all company applications regardless of location and whether the user is connected to the company’s own network or working from their home office. ZTNA doesn’t trust any user or device automatically, and it provides a better and even more secure user experience to modern and complex network solutions.
ZTA (Zero Trust Access) means knowing and managing who or what is in the company’s network and where they have access. For example, the user’s role or the purpose of the IoT device determines appropriate permissions to the network. In all simplicity, ZTA is access permission management without trust.
Zero Trust is an application development philosophy used to build a more secure network environment. The Zero Trust idea is based on trustless security: never trust anything, always verify. Traditionally the users and devices in the internal company network have been trusted. For instance, VPN functions this way. Zero Trust challenges this paradigm and aims to change how we view data security. It asks how we can ensure that appropriate users and devices can securely access the company data. Zero Trust recognises that threats can lie within the company along with the threats of the external network.