If they have the capacity to intercept the supply chain, they almost certainly have been implanting listening devices in electronics of all sorts. If you're not in Hezbollah or Hamas you probably don't need to worry about getting blown up by your phone, but if you've got a large platform and been very critical of Israel, it wouldn't be a huge stretch to imagine that you might get personally targeted by communication interception.
Israel maintains public lists of people criticizing Israel (if you publicly apologize to them and renounce your views you can be removed) so I wouldn't be surprised that they are also maintaining a large network of interception. Maybe even using multiple avenues to collect data like buying from data brokers.
OK, also don't stand near Hamas fighters when they flagrantly violate international law and fight from designated humanitarian zones.
(Obviously, voting in Hamas was a huge mistake, but Palestinians probably didn't expect Hamas to make that the last election. Unfortunately, you only need to elect a totalitarian government once.)
