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Cake day: June 7th, 2024

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  • The next three steps in the code are:

    • Enabling IBRS (indirect branch restricted speculation)

    • Untraining the return stack buffer

    • Clearing the branch history buffer

    These are there to mitigate against speculative execution attacks, such as spectre (v1 and v2), and retbleed. Speculative execution is an optimization in modern processors where they predict the outcome of branches in the code and speculatively execute instructions at the predicted path. When done accurately, this significantly improves the performance of the code.

    It’s like one time someone came through your house and stole all the valuables from every room. Now you have to lock/unlock every single interior door as you walk from room to room.

    This is why we can’t have nice things.



  • I’m sure OP knows this, but there are many branches of philosophy. On the epistemology side, there’s usually more focus on meaning and knowledge. On ethics, focus on right and wrong. On logic, it’s closer to math and science.

    Many people think philosophy just means sophistry and arguing, but each branch has practical applications too. Some of my philosophy major friends ended up going for PhDs. The only career path there was writing and teaching. For those who didn’t, it was to supplement some other degree.







  • Think of Google as a set of signals.

    Every time you search, you’re sending it a signal that you’re interested in a subject.

    Google Analytics is embedded in lots of sites. Each time you visit, it sends them back a signal. If you click on one of the ads on the google site, or on any of the millions of sites with embedded google ads, it sends back a signal. If you use Android, each time you change location, make a call, or click on an app, that’s a signal.

    When using Nest, or Google Home, or Assistant, that’s another signal. If you use Google Maps , Google Auto, shopping, photos, drive, translate, image search, gmail, all the office apps, and Gemini. Bingo, a signal.

    If you follow a link in any of the above, shared by someone else. A signal.

    You don’t need to be logged-in. All is needed is an association of that signal with an ‘abstract user’ which represents you across many systems, devices, and applications.

    You can turn off tracking, or tighten privacy settings, or go private. All they need is a loose combination of factors (aka fingerprint) to match your previous actions with your devices, user accounts, or signals.

    When you get on Youtube, you’re at the tail end of a massive amount of historical data accumulated over time and attached to you. The algorithm just returns a best prediction of what matches that trail. And what you click on and how much of it you watch or skip. Yup, another signal.

    And no, none of us can opt out. The same is true for Facebook/Meta, and any other embeddable service, powered by ads.

    You can go private, turn off javascript, use alternate browsers, or go back to a flip-phone. Sorry, it doesn’t make a difference. Not any more.


  • fubarx@lemmy.worldtoPrivacy@lemmy.ml*Permanently Deleted*
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    11 days ago

    I used to work on making those types of devices. There’s one good reason to connect them to the internet, and that is to report the health of the device and automatically call up maintenance if things go wonky. But nobody does that. Instead, they all snag user interaction data and send it off to the magical cloud without knowing why. Or to upsell you consumables like water filters and detergents.

    One other reason to have them connected is to send push notifications when something needs attention. Like when the power to the chest freezer in the basement has gone off and the human body parts are starting to leak.




  • A long time ago I helped set it up so an elderly relative’s HOA dues were auto-withdrawn from their checking account. Someone stole one of their checks, washed it, wrote in a different name and amount, and cashed it. Bank anti-fraud caught it, refunded the money, and closed the account. I sent the HOA a message explaining the situation and asking what the procedure was to change account numbers.

    They emailed over an attached PDF form. Had space for fullname, phone, address, bank routing and account number, and her real signature. Pretty much a PII nightmare. The instructions were to have it filled out and emailed back to them. 🤦🏻‍♂️

    Told the relative to print it out and send it back by post.