Basically all possession laws (really all laws in general) require some sort of knowledge and intent. Just like you can't be convicted for possession of drugs if they were stuck to the bottom of your shoe when you came out of a club (don't actually try this), you can't be convicted with possession of illegal digital material if you weren't aware you were in possession of it.
I did digital forensic work at an old job and one of the cases was someone who liked to indiscriminately download huge amounts of porn off dodgy p2p applications. We found gigabytes of indecent images of children, but no searches in the p2p application for commonly used IIoC terms, and no evidence that he'd either opened the folders containing the IIoC or actually viewed any of it. Police gave his hard drives back (after wiping them ofc) and let him go.
I wouldn't be concerned about his 4chan backups, any lawyer will be able to get him off the hook for anything illegal in there provided he hasn't actually opened it.
Clearly not all laws in general: https://www.npr.org/templates/story/story.php?storyId=188420...
Yes, that seems extremely exploitable. No, I don't know if anyone has ever weaponised child porn this way. I wouldn't be surprised if it happened (and worked) though.
That is a haunting reflection of the state of affairs with regards to information and laws regarding information. Criminalizing the mere possession of information should be a tool only of the despotic and/or idiotic.
Of course, these clowns left "private" information accessible by public urls without identification, so we know that they're at least idiots.
CP would not be unlikely even if he just archived "safe" boards like /a/, /tv/, and /g/.
There's plenty of good discussion as long as you stay away from /b/, /v/, and the porn boards.
/diy/ always has interesting projects. /g/ seems to be the one tech board on the internet that takes consumer privacy seriously (Even HackerNews seems to give Microsoft a free pass in this regard)
I'm hoping Canadian laws treat this differently but if he were German and they found anything like that in his archive, he'd be facing child pornography possession charges.
Intent and knowledge of the illegal material of which you are in possession could easily be a requirement.
I'm no laywer, but archiving the internet is hardly illegal.
Tell that to the part of the law enforcement that decided to arrest this kid for accessing a public website.
30TB is a stupid amount of anything for any one person -- I've always used wayback if I wanted to see an old page
I had a lot of things saved through Instapaper right from its inception, but I stopped using it regularly and one day when I went back I didn't appear to have anything saved anymore.
Since then, I've been much quicker to download things I might want in the future. Storage is cheap, archaeological effort is not.