SDP: Software-Defined Perimeter in Cybersecurity
SDP stands for Software-Defined Perimeter. A software-defined perimeter creates an invisible boundary around applications by authenticating and authorizing users before granting network access. SDP follows a "deny all, allow by exception" model.
How SDP Is Used in Cybersecurity
Security teams deploy SDP to hide internal applications from unauthorized users and scanners. The controller verifies identity and device trust before opening a one-to-one connection to the target application. SDP architectures form the foundation of many ZTNA products.
Read the full glossary entry: Software-Defined Perimeter in Cybersecurity
Cybersecurity Roles That Work with SDP
Related Cybersecurity Acronyms
Frequently asked questions
What does SDP stand for?
SDP stands for Software-Defined Perimeter. A software-defined perimeter creates an invisible boundary around applications by authenticating and authorizing users before granting network access. SDP follows a "deny all, allow by exception" model.
What is SDP used for in cybersecurity?
Security teams deploy SDP to hide internal applications from unauthorized users and scanners. The controller verifies identity and device trust before opening a one-to-one connection to the target application. SDP architectures form the foundation of many ZTNA products.
Definitions are original explanations written for career development purposes. For authoritative technical definitions, refer to NIST, ISO, or the relevant standards body.