In the early days of Smart Phones I upgraded pretty frequently, going through iPhone 3G, 4, 5, 6s but my cadence steadily moved out as fewer major features that I cared about were being added. It got to a point where the camera was ‘good enough’ and the anything else being added was stuff I just didn’t care about.
I’ve had my current iPhone for 3 years now, and I have no plans on upgrading any time soon. Despite the bug crack in the back.
This is not a good idea. Labelling certifications for things like electrical safety or radio emissions standards make sense, as they’re meeting regulatory requirements.
The problem with Cyber Security is there is no such thing as perfectly secure. A secure device today, could have a vulnerability discovered tomorrow. Additionally, a big part of Cyber Security for devices is maintaining software/firmware patching is up to date. A stamped mark to say something is secure would provide a false sense of security, and could reduce the awareness of the user to the potential risks of not maintaining their devices.