cockpit that is linked to the internet should be considered vulnerable, even to what they call malicious actors. tamron? >> well, let me bring in cybersecurity expert dave prossner founder of parameter security describing himself as a ethical actor and hired by companies to hack into their systems to find flaws. thank you so much for joining me, dave. >> no problem. >> you've seen the report also done your own research here. do you buy this man's claims he was able to take over the flight with its in-flight entertainment system and actually move the engine? >> well, it may be possible. it's what we're starting to hear from the defensive side that it is completely isolated kind of leads me to believe he may have tried it but i don't know if he was very successful. i would assume the aviation recorder would have been able to track if there was some deviation in the navigation. >> so you see this as an