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I have heard simple cases of people who have tried to make their access password to their simple devices very complex and ended up forgetting it, do not things that you are not used to especially now that money is involved.
That's an example of people being too paranoid about security being too simple.
Even though if something simple is well maintained and without any mistakes from the user it will also remain safe.
But some people who already understand the security used, make it a little complicated and technical it is their own responsibility.
Creating a new layer of security that is difficult for anyone to penetrate.
It involves a lot of effort to keep it safe and don't be too stupid to do technical things but don't fully understand what you're doing.