• bane_killgrind
    link
    fedilink
    38 months ago

    With long range RFID readers existing that is bad opsec. You don’t need to know the contents of a document to exploit it’s dissemination, in certain cases.

    • @[email protected]
      link
      fedilink
      18 months ago

      I’m thinking something like this:

      1. All classified docs are kept in a secure room for storage with external RF blocking; the folder has an RFID (or similar) tag
      2. When an item is requested, the contents are moved to a new folder with a temporary barcode or similar
      3. When the item is returned, the temporary barcode is destroyed and the document is placed back in the secure room

      Step 2 could use a temporary RFID tag as well, which gets replaced at each checkout. That way all an attacker would know is that an RFID tag is being used, they wouldn’t necessarily know it’s a classified document.

      Obviously the approach would need to be refined (I don’t deal with classified documents), but the general approach should work, especially if RFID is used for a bunch of less sensitive documents as well so RFID tags become commonplace.

      What’s nuts to me is that it took so long for authorities to track those documents down, and they didn’t even get them all. They should have all been tracked down between the time Trump lost reelection and the time he left office, and perhaps confined to the White House.

      • bane_killgrind
        link
        fedilink
        48 months ago

        I deal with consumer data analytics, and the scheme that you are positing does expose the frequency and density of specific actors and their access to classified information. This is really valuable, you can tell when someone gets a promotion and maybe has access to more info then they are used to or some other exploitable paradigm.

        If it’s just a printed barcode sure, it could be tracked like this without exposing information. Trouble is that classified documents are living documents, and the information only becomes classified when it’s collected by some operative or officer, who may or may not register the documents with this central tracking authority.

        The next issue is the capability of the central tracking authority to review, access, curate all of the reports that it has received, and their confidence that their internal staff do not breach the access rules on these documents hello Snowden.

        • @[email protected]
          link
          fedilink
          18 months ago

          Digital security (like the Snowden leak) is completely separate from physical document security.

          For physical security, it seems plausible to just put a tag on every official document, whether mundane or classified, which would complicate tracking efforts by a potential enemy since they’d have to sift out the noise. If documents aren’t out of storage very long, the tags can be cycled with other documents to further confuse an attacker. That’s a bit “security through obscurity,” but AFAIK that’s kind of the game you okay with physical documents.

          Also, I think the FBI/CIA would be more interested in knowing which of the documents went missing in the event of a leak than having a slight bit more obscurity to prevent long-ish range tracking. If they have a mole that can help them know which documents are interesting, they can just steal the documents anyway.

          Then again, maybe this is why I’m not in OpSec for classified documents.

      • bane_killgrind
        link
        fedilink
        28 months ago

        Basically collecting information on the movement of documents is a security risk in itself.

        Papers in a flaming trash can are secured. Not much else.

        • @[email protected]
          link
          fedilink
          18 months ago

          Sure, but it’s not very helpful if most of those documents aren’t very interesting. I’m suggesting we tag every official document, whether interesting or not. An attacker would need to know which tags are interesting to get any value from it.

      • ian
        link
        fedilink
        18 months ago

        I’m thinking there wouldn’t be enough secure rooms to house all the documents, without making it difficult to access them. I

        • @[email protected]
          link
          fedilink
          18 months ago

          The mundane documents don’t need to be stored in a secure room, they just need to reuse tags from the secure vault to help obscure the classified documents.

          Presumably secure storage already exists and blocks RF, so the main change here should be tagging.