Interconnection is the establishment of a secure, private, and direct physical connection between two or more networks, cloud providers, or enterprises to exchange data. Peering, on the other hand, is a type of interconnection where internet service providers (ISPs) and large technology networks exchange traffic with each other either free of charge or at a very low fixed cost, bypassing intermediary telecom operators. These structures reduce data latency to milliseconds, prevent packet loss, and significantly minimize large-scale data transfer costs.

SIEM = Security Information Management (SIM) + Security Event Management (SEM). The combination of these two disciplines enables organizations to perform both historical data analytics and real-time threat detection.

A DDoS (Distributed Denial of Service) attack is an organized type of cyberattack aimed at preventing legitimate users from accessing a network, server, website, or application by consuming system resources and bandwidth with fake traffic from around the world. These attacks are not carried out from a single source, but simultaneously through networks of thousands or even millions of compromised devices (botnets).

TCO (Total Cost of Ownership) is a holistic financial metric that represents not only the initial purchase price (CAPEX) of a technology infrastructure or hardware investment, but the sum of all direct and indirect costs that arise throughout its lifecycle, including installation, operation, energy, licensing, maintenance, and personnel (OPEX). In today's rapidly digitizing business world, this critical calculation determines the true value businesses will gain from their technology investments and their agility in the market.

The software development world went through decades of painful paradigm shifts before reaching today’s speed-driven structure. Understanding this evolution is the key to grasping why DevSecOps is not an optional “choice,” but a “necessity” for survival.