Network Security
The practices and technologies that protect network infrastructure, data in transit, and connected systems from unauthorized access, misuse, and attacks. Network security encompasses firewalls, intrusion detection, access controls, encryption, and segmentation.
Network security operates on the principle of defense in depth: multiple layers of protection ensure that the failure of one layer does not compromise the entire system. Key components include firewalls that filter traffic based on rules, network segmentation that isolates systems into security zones, intrusion detection systems that monitor for suspicious activity, and VPNs that secure remote access. Zero-trust networking, which treats every request as potentially hostile regardless of its source, is increasingly replacing perimeter-based security models.
For AI product teams, network security is critical because AI systems process sensitive data and represent high-value targets. Model endpoints must be protected from unauthorized access, training data pipelines must be secured against tampering, and user data flowing through AI features must be encrypted end-to-end. Growth teams should work within security constraints rather than around them: implementing proper API authentication for experiment infrastructure, using encrypted channels for transmitting user behavioral data, and ensuring that third-party analytics tools meet security requirements. A security breach involving AI-processed user data can destroy the trust that growth teams work hard to build.
Related Terms
Content Delivery Network
A geographically distributed network of proxy servers that caches and delivers content from locations closest to end users. CDNs reduce latency, improve load times, and absorb traffic spikes by serving content from edge nodes rather than a single origin server.
Edge Computing
A distributed computing paradigm that processes data closer to the source of generation rather than in a centralized data center. Edge computing reduces latency, conserves bandwidth, and enables real-time processing for latency-sensitive applications.
Serverless Computing
A cloud execution model where the provider dynamically manages server allocation and scaling. Developers deploy functions or containers without provisioning infrastructure, paying only for actual compute time consumed rather than reserved capacity.
Function as a Service
A serverless computing category where developers deploy individual functions that execute in response to events. FaaS platforms like AWS Lambda, Google Cloud Functions, and Azure Functions handle all infrastructure management, scaling each function independently.
Platform as a Service
A cloud computing model that provides a complete development and deployment environment without managing underlying infrastructure. PaaS offerings like Heroku, Vercel, and Google App Engine handle servers, storage, networking, and runtime configuration.
Infrastructure as a Service
A cloud computing model that provides virtualized computing resources over the internet. IaaS offerings like AWS EC2, Google Compute Engine, and Azure Virtual Machines give teams full control over servers, storage, and networking without owning physical hardware.