Lisäsuoja

Lisäsuoja is a Finnish term meaning an additional layer of protection that is added on top of existing safety measures to reduce risk. It refers to an extra safeguard that complements standard protections and can be physical, technical, procedural, or administrative in nature. The concept is used across various sectors to strengthen safety, reliability, and resilience without replacing established controls.

In physical safety contexts, lisäsuoja can include elements such as protective enclosures, guarding, padding, or energy-absorbing materials that reduce injury or damage in the event of a failure or accident. In electrical or mechanical systems, it may mean redundant components, additional protective devices, or enhanced isolation that provides extra fault tolerance beyond the basic protections required by standards.

In information technology and cybersecurity, lisäsuoja often appears as layered defenses beyond primary controls. Examples include encryption, multi-factor authentication, more stringent access controls, continuous monitoring, and incident response planning. The idea is to create defense in depth so that the compromise of one layer does not lead to a total breach.

Implementation of lisäsuoja requires a risk assessment to determine where the greatest residual risk lies, as well as consideration of cost, compatibility with existing systems, maintenance needs, and user impact. When well designed, lisäsuoja enhances safety and reliability without creating unnecessary complexity or a false sense of security.