Why should engineers view silent failures as a security and integrity issue, not just a reliability problem?
A system that freezes or behaves unpredictably without triggering a fault is not only unreliable – it is also untrustworthy. From a security and safety perspective, silent failures break assumptions about system state and control flow. They can mask denial-of-service conditions, allow compromised components to go unnoticed, or prevent security mechanisms from executing as intended. If you cannot detect that software has deviated from its expected runtime behaviour, you cannot be confident in its integrity, regardless of whether the root cause is a bug, a design flaw, or malicious interference.
How do you expect embedded security and monitoring practices to evolve over the next few years?
We expect runtime observability to become a standard part of embedded security and quality strategies. As systems grow more autonomous and software-defined, engineers will need continuous insight into how software actually behaves in the field, not just how it was designed to behave. Monitoring execution integrity, timing predictability, and behavioural anomalies will be just as important as protecting communication channels or validating firmware at boot. In that sense, observability becomes a foundation for both reliability and security in nextgeneration embedded systems.
Andreas Lifvendahl, CEO at Percepio
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