haha

it only stores the last 500 by default. Which isn't that much space.

Great feedback! Laser for sure… and one can also print on acid-free paper.

@@sunknudsen love youtubers that take their time to read trough comments👍

@@sparklesparklesparkle6318 yeah no, your back will get whipped and torn if your interrogated by fbi, i advise you to print your backupbackupbackup on contact lenses so if in need you can view it from there

@@sparklesparklesparkle6318 Pitty you that u only got Bluetooth over there, since i got vaccinated i now have 5G + i can sh*t QR codes which scan as the backup codes. Just get an upgrade man, it´s worth it!

That's why you use a browser like Firefox or Chrome as a PDF viewer, not some shady off-site PDF viewer you got from some advertisements.

@@outrowed even the built in mac os pdf viewer stores a cache, but i guess we can call them shady too lol

hang on, so this entire hysteric is about CUPS logging jobs as it does by default??? holy shit lmao mac os users were a mistake

just like the no button on their phones that actually does not stop the phone from collecting all your searches, websites visits, etc. and sends it to Apple even when turned off !!!?? this company cannot be trusted they are as anti consumer as it gets

@@pitbul2877 exactly it’s a feature for quotas

Thank you for that solution, much better.

How often is once in a while? I just checked mine and I have files going back a year to when I got the MacBook.

According to documentation I found it keeps the last 500 prints

Or use an OS that's superior on any level like Mint, Ubuntu or Arch... If you're paranoid you can also use tails ...

On linux they eventually get cleared out in linux maintenance. But I only managed a bunch of linux servers for years.

I use Arch Linux for many years and have not reinstalled. I immediately checked /var/spool/cups on my computer and very interestingly, there are no actually saved images or encoded images of the printed documents, but there _are_ a huge number of metadata files that each contain the _filename_ of the document that was printed, the date it was printed, and the name of the printer used, for every document I've ever printed. For my case this doesn't make a difference because the original documents that I printed are all still stored in standard documents folders elsewhere, but I just thought the difference in behavior is interesting

@@tacokoneko I wonder why that info would be needed. Why does the OS think that that’s something that should be recorded for the short term, let alone the long term? Pretty crazy.

Great video/content, thx

@@MattGreek the OS doesnt think anything, CUPS does and cups is a made by apple

Looks like it purges them on arch Linux so it's a config thing in macos

@@_framedlife Or Arch linux have a job to purge the folder and cups does not by default have that.

Happy to be back!

Pleasure!

On Linux, I see that the /var/spool/cups directory is cleared when I restart the cups service and, as far as I can tell, this is not done by some Linux specific scripts but by cups itself. If that works the same on Mac then you should not have any files older than your last reboot. Check your 'uptime'. I also noticed that the default value Yes for PreserveJobHistory is documented as «the job history is preserved until the MaxJobs limit is reached». MaxJobs is 500 by default but it could be smaller in your configuration. Anyways, «PreserveJobHistory No» should only be needed if you care a lot about the security of your printed files. If your goal is to save disk space because you almost never reboot then a better alternative is probably to use more reasonable settings such as set «PreserveJobHistory 86400» or «MaxJobs 5» . That way, you will keep the ability to restart your old jobs for a while (e.g. after a pager jam or if you decide that you need more copies)

@@cynodont7391, nice, thoughtful, clear comment. Thanks.

He's completely full of shit and desperate for internet attention.

@@richardbennett4365 Clear, but not correct on MacOS. Rebooting does not clear files.

@@toadlguy, okay.

Thanks for sharing and pleasure!

Can i view files in there. I need to retrieve the last thing I printed.

Will likely publish about iOS16 and macOS Ventura… that said, haven’t upgraded yet (except macOS on one lab computer as seen in episode).

No way haha… lost printed paper backup?

This is probably the only person that benefited from this weird default value

No he didn’t.

I want to believe!!!🤞🤞🤞🙊🙈🙉💛🧡💚💚💚 Come on super psychic human network of mutually beneficial serendipitous awesomeness..:::💎⚡

@@sunknudsen i bought some eth a long time ago (like 90€) and forgot about it. With your trick I found the old paper wallet.

Thanks for sharing!

I switched to a M1 MacBook Air a while back… amazing computer except for limited ports and single external display connectivity.

Pleasure… directory is not accessible through Finder given it requires root privileges.

@@sunknudsen that’s helpful, thanks.

Good question… yes… I will add steps to remove patch to guide when a have spare time. Stay tuned!

Done 👉 sunknudsen.com/privacy-guides/how-to-disable-cups-pinter-job-history-on-macos#want-things-back-the-way-they-were-before-following-this-guide-no-problem

@@sunknudsen Thanks!!

Government agencies like backdoor options to destroy people's lives.

Not sure about Linux… my gut feeling is Linux would clear cache once printing jobs complete. Does path exist on your system?

@Josué Yuman if possible mention me in your answere to Sun im curious!!!

I believe /var/spool/cups requires root privileges by design which is great for security. Tried rebooting computer and files are still there. Could others corroborate this?

Good question… if you see a bunch of files in “/var/spool/cups”, likely yes.

I tried but the folders are very hidden 'sudo cd' does nothing. You have to first display hidden files, then authorize that you can open the folder, which requires entering your password/touchID. Once inside the folder there's files without extension, those that begin with 'd0-' are the files you have printed, copy them then guess which format they were originally. Only the lasts prints are there, no idea what triggers the suppression. Honestly, can it be called security issue?

that's exactly what I was thinking, is that some kind of 5 minute craft "life hack" video or a security researcher providing a professional service like "I made a script that clears your spool folder? Am I going to tell him about emails or are you? As a security researcher you shouldn't really be recommending macs for your clients, as an IT consultant you should recommend what ever the client can afford, rich lawyers can afford macs so that's going to work super well for the 99% of people that don't know that there's other folders other then "My desktop, My documents, Pictures... "computer stuff"" The 0.1% that knows how to use a computer should not be working with those files, rather they should be part of the IT staff. If you really didn't wanted that info to be stored on a machine that shouldn't have that document for more then the job, then you should have the client connect to a machine that is authorized to print and view such documents, that way you can control when ever the client can or can not view the information, if anybody got hold of their machine you could revoke that privilege, better yet you should set it up so that the client HAS to get permission every single time they want to interact with the data, that way you can keep track of how the data is being used.... basically don't hire a "police IT" department because they always lose critical information like that. This video could have been summed up in a 3 minutes notepad.exe video with some emo music back in 2009 "Hi Today I'm going to show [scrools down] You how to...." Please like, share and subscribe to randomkid007"

Because we keep running out memory on our hard drives due to mysterious "System" files that can't be deleted. By your logic we should never delete our cache or our browser history. Let's just fill up our hard drives with useless data.

@Dave if this is occurring in your setup then that is a separate issue, my comment was only in relation to the supposed security risks the video brought up (which are not real under a modern OS)

@@MRMsysdotnet The main security risk is that people are unaware their computer is storing everything they have printed. Very concerning if you share your computer or run third-party apps that are not entirely trustworthy. Full disclosure needs to be given to the user that their files are surreptitiously stored in a location they aren't aware of, so they can take further precautions if necessary.

@@davehugstrees In my experience, it's almost always Outlook bloat that fills up Macs in a corporate/work setting. Outlook for MacOS doesn't let you specify a maximum local storage (it can be done, but it's not a simple setting like in the Windows version). You can use daisy disk utility to get detailed information about what's eating up your storage on mac. You wouldn't know it was Outlook without this a 3rd party program. I've seen Outlook use 180GB of a 256GB drive.

Did you append .pdf file extension? Yes, files can be purged by running “cancel -a -x”.

@@sunknudsen Yes, I add the pdf extension. Thanks!!

Likely because folder requires root privileges…

Thanks for sharing… have you checked on your Mac is that default is actually used?

On my machine the files in the cups folder go all the way back to the day I got the computer which was 11/7/2021 (16" Macbook Pro 2021). So at this point it has not purged for over a year. I have not changed any settings related to this.

@@lizardspock4746 Assuming you're up to date I would report this to Apple !

@@staticyrro The saved copies in /var/spool/cups seem to be controlled by PreserveJobHistory (defaults to Yes, up to 500 jobs), not PreserveJobFiles.

@@aypfvn PreserveJobHistory controls the preservation of control files (job metadata). Preservation of the actual job data is controlled by PreserveJobFiles.

Great feedback… have to look into RAM disks.

If ever you put together a reliable RAM disk implementation on macOS, please submit PR on github.com/sunknudsen/privacy-guides.

This would definitely by a CUPS issue. According to some threads I've seen, the CUPS author (Michael Sweet) claims this has been fixed, but who knows? I print a fair amount on my Mac running Monterey 12.6.1 and, while there are some PDF files in /var/spool/cups, they're only a few days old, so the claim by this poster that it keeps files "forever" may be a bit of hyperbole.

Hey, there is a hard limit at how much data can be stored within a single QR code… Superbacked also encrypt data using one or two layers of encryption (two for distributed backups) which uses some of that space and adds a layer of plausible deniability which uses significant space ( see github.com/sunknudsen/blockcrypt ). As a result, one can store the equivalent following comment in text.

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Enough to hold many secrets which can be used to encrypt data stored in the cloud.

i just ran that through a latin translator and it was a trip.

Thanks for sharing… strange hey?

It's stupid to say there is nothing to fix when private devices are also affected here. If it's for company security it should only doing this on those company Mac's.

the problem in need of fixing is informing the user, which is addressed in part with the making of this video. not being aware of data artifacts is irrefutably a security dilemma.

@@TheJacklikesvideos by that same token, the user’s failure to read the EULA is not Apple’s fault.

I'm not sure where... But he already explained thay he uses linux too, but mac is more consumer oriented or something like that, he made a good point, but I can't recall well

Thanks for helping out @EdrumSense… episode is kzfaq.info/get/bejne/bpqjdq-Z3pPWp2w.html.

That question has multiple answers, for example, photoshop, vegas, office, and many many more

Linux uses CUPS too.

@Ronit I love the mac os too but just up to Snow leopard.

I agree this might be confusing… have you watched kzfaq.info/get/bejne/bpqjdq-Z3pPWp2w.html

This appears to also affect Linux, and probably fixable the same way

It’s a Unix thing so also can effect Linux as cups is also available there

CUPS is CUPS is CUPS whether shipped with macOS or some Linux distro. Assuming the bug is in CUPS (most likely) then switching to some Linux is not going to fix this particular problem.

CUPS isn't always CUPS, CUPS "shipped" with Linux is a Fork of CUPS. And remember, Linux Isn't BSD.. close.. but not exact.

Interesting alternative… have you ever tried implementing it on macOS?

Cool cool… how much of this channel have you watched? Have you stumbled upon the privacy guides reference material? I like to believe I am the type of person who uses the right tool for the job. sunknudsen.com/privacy-guides?search=debian

What do you use?

@@macb.631 SerenityOS

@@stephenkamenar I think you overestimate your average Joe’s interest in operating systems. Most people I know either uses a Mac because they like their iPhone, or has a windows computer because they game or find it cheaper. Very few even know Linux is a thing.

Oooohhh. You're so edgy...

Hey Cedric, tab completion doesn’t work for root-restricted paths hence why it didn’t work and I had to fallback to copy paste.

Linux is also affected. The folder does have what you printed but not everything only the latest, secondly you need to override permissions in order to access the folder, which requires to enter your password/touchID. At that point a hacker would be more interested on the rest of your drive than trying to get into that folder.