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Cake day: June 18th, 2023

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  • NaibofTabr@infosec.pubtoAsklemmy@lemmy.mldeleted
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    27 days ago

    A couple additional thoughts:

    • You sent your boss an email using your company email server. You do not control this server. You cannot rely on this email as a paper trail, any email you send could be deleted by someone else with administrative access. In Outlook it’s possible to delete any email that was sent internally and the logs that it was sent.

    • You should write down the date(s) and time(s) that you sent emails about this to your boss, on paper. Keep it with your other work notes.

    • You should not include any specific technical information about your company’s systems in this paper record as this might expose you to liability in the future. Just record when you sent the emails and a general description of the subject (e.g. “email to boss about upgrading out-of-date operating system”), and a short description of any response (verbal or written).

    • You have offered to upgrade this system. Your boss said no. It’s not your responsibility anymore.

    • If I were in your position I would tell my boss explicitly that I won’t be responsible for the security of this system or anything connected to it, at least not without a signed risk acceptance statement. You might not feel comfortable doing that, it is potentially confrontational.

    • If you’ve been told that you’re responsible for this system (your employment is dependent on it) in spite of your objections, please take a look at this article about security hardening for Windows 7 and try to implement as much as you can. If you’re not responsible for it, don’t mess with it.






  • The CEO also claims that users’ Signal messages have popped up in court cases or in the media, and implies that this has happened because the app’s encryption isn’t completely secure. However, Durov cites “important people I’ve spoken to” and doesn’t mention any specific instance of this happening.

    […]

    The Register could not find public reports of Signal messages leaking due to faulty encryption.

    Claims made without evidence can be dismissed without evidence.

    Durov’s entire criticism seems to be based on implications and have no actual evidence of any technical problems with Signal. He’s basically just throwing shade at a competing business, which amounts to whining.


  • Huh… and that’s repeatable? How long could you go on Linux before the blackouts, and did you run on Windows for a similar amount of time with no issues? also, when the blackout happens does it recover after a little time, or do you have to reboot to get video back? (is it just a screen blackout, or has the system crashed?) When the screen is black, can you reboot with busier backwards?

    One issue that I’ve had on Linux installs is that the system doesn’t recover properly from hibernate. I’ve seen this on laptops and desktops over more than a decade. When this happens the screen goes black and the system doesn’t respond to any keyboard or mouse input, the only way to recover is to force a reboot. Maybe check your power management profile and disable hibernation.

    Otherwise there are a lot of reasons that the screen might black out:

    • power issues - what is your PSU model? Linux installs are frequently not as power efficient as Windows on the same hardware, generally because Windows does a lot more throttling by default.
    • overheating - Windows (and the Windows hardware drivers) might be configured to throttle the CPU and/or GPU to manage the temperature automatically without telling you, while Linux might be giving you the full unthrottled system power and overheating.
    • video drivers & multimonitor - as others have said already, this could be an issue with the Linux video drivers. You should verify which driver you’re using as EccTM@lemmy.ml said. Are all your monitors the same resolution? I’ve definitely had trouble with mulitple monitors if they were mismatched.
    • bad CPU core - this one’s a long shot, but Windows tends to be a lot more single-threaded while Linux is more likely to try to balance operations across all CPU cores. Maybe one of your cores has an issue, and when Linux tries to use it it triggers a system crash, while Windows just never gets around to using that particular core for anything critical (and so never triggers the crash).
    • SSD/swap file issue - most Linux distros will configure a swap partition on the root hard drive by default, which is used as an extension of the RAM. Windows doesn’t use a swap file. You have plenty of RAM so there’s not really a need for it, so you should try just disabling swap.

  • But whether a few hours or a few days, eventually I start having issues with the displays. Monitors will black out. Not boot. Eventually the whole system just stops working in a way that I can figure out.

    This sounds more like a hardware issue than software. Can you provide more detail? Have you done basic troubleshooting steps like trying different power cords and surge protector/power strip? What is the full list of hardware for your system? Have you reseated the RAM? Replaced the CMOS battery? (a dead CMOS battery will prevent system boot)






  • NaibofTabr@infosec.pubtoScience Memes@mander.xyztrapped!
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    2 months ago

    “Hard” science fiction usually means that the futuristic concepts and fancy technology are based on (and limited) by our current understanding of the physical universe - if you had enough engineering ability, you could actually do the things presented in the story. This is in contrast to things like Star Wars and Star Trek, where the things they’re able to do are basically fantasy dressed up with a technological skin.