One of the enemies you have to hack into is a pedophile and your job is to expose him for being a bad person. As far as i know it doesn’t show any actual children but the guy is sitting at his computer talking about the types of videos he has, and is seen watching a live stream of a child bedroom.
In my play through as soon as the parent told the kid to get ready for bed i was able to finalize the hacking and delete the in game data he had so I’m not sure how much further it goes but i doubt it would be graphic as all characters see him as a horrible person.
Sorry if this is a lot of writing but it make me uncomfortable and i thought i should share with y’all since i didnt see it on this list yet.
I haven't played through, maybe someone who has can provide a better count.
One instance that I know exists within Watchdogs 2 is that a man attempts to kill himself with car fumes. It can be averted, there are walk-throughs available online. However, if too much time passes he dies. This occurs during a privacy invasion.
Three other instances of suicide, people contemplating suicide, or Russian Roulette are listed on the watch dogs wiki page for Privacy Invasion, but it is unclear if they are for the first and second game, and I'm not sure that list is comprehensive, considering that it doesn't list the instance described above.