• 1 Post
  • 17 Comments
Joined 1 year ago
cake
Cake day: June 13th, 2023

help-circle





  • cjf@feddit.uktolinuxmemes@lemmy.worldIt's really not that hard
    link
    fedilink
    English
    arrow-up
    15
    ·
    edit-2
    1 year ago

    The way I understand it, it’s an automated job that sends the “trim” command to SSDs to discard all the blocks that have been marked as unused by the filesystem. My knowledge is a little patchy so I’m probably missing some important details…

    When you go to delete something on an SSD, it’s simply just marked as being deleted. The file still technically occupies space on the SSD and the SSD will never simply overwrite space that has a deleted file on it.

    So… by enabling the service, systemd will automatically send the trim command that tells the SSD to empty out all the space occupied by files marked as deleted which allows the SSD to reuse said space.


  • It wouldn’t surprise me if WhatsApp’s model on this is what the UK government were thinking of with the Online Safety Bill when they tried to enforce a back door in encrypted messengers.

    It’s incredible just how much more interesting metadata can be than the actual message contents.

    Explaining this to people when they ask why I don’t use WhatsApp is pretty difficult though.

    I wouldn’t feel comfortable if I found out that what I thought was just a casual walk down the street mindlessly chatting with a friend turned out to also involve a third party neither of us were aware of tracking all of our movements.



  • I believe this is down to what they define as being end to end encrypted.

    It’s no secret that WhatsApp adopted Signal’s encryption protocol just before Meta acquired them, but since it’s all closed source we don’t know if they’ve changed anything since the announcement in 2016 that all forms of communications on WhatsApp are now encrypted and rolled out.

    Within WhatsApp’s privacy policy, it’s important to note that they only mention end to end encryption when it comes to your messages. Everything else is apparently “fair game” for collection. Of note, the Usage and Log information point details all the metadata they collect on you automatically, including how you use the service; how long you use the service; your profile info; the groups you’re in; whether you’re online; and the last time you were online, to name a few things.

    I guess what I’m trying to say is that technically they are end to end encrypted by definition, and whilst they’ve gone ahead and implemented things such as encrypted backups (that you must enable) to make it harder for them to read your message contents, they can still collect a lot of metadata on every user.


  • Copying one of my favourite (and last saved) comments from Reddit:

    The most precious commodity we have is our time on this planet, and we have far less of it than we realise. The time we choose to spend together is a gift we give to each other.

    Appreciate the gift of their precious commodity that they give you, don’t expect more than they are willing to give, but don’t squander your precious resource with someone who doesn’t appreciate your gift.



  • It’s an email alias service that generates a gibberish albeit unique email which then forwards on any received emails to your specified email inbox.

    As far as I can tell there’s no way to link the two together unless you can see where the emails are being forwarded to.

    DuckDuckGo offers a similar service (but free), also Proton (simple login) and addy.io (formerly AnonAddy).

    Unsure about firefox relay specifically, but I’ve used DuckDuckGo and simple login (after it was acquired by proton) and both have to process the email first before it forwards it onto you. In the case of DDG, they also helpfully strip out any trackers in the email they pick up too.