<p><pre><code> The avionics in a cockpit operate as a self-contained unit and aren't connected to the same system used by passengers to watch movies or work on their laptops.
But as airlines update their systems with Internet-based networks, it's not uncommon for Wi-Fi systems to share routers or internal wiring.
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I assume an executive overrides the engineers when they design this crap. It worries me that someone who cheated their way into a CCNA cert. is likely setting this stuff up.