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Notices by Martin (mshelton@mastodon.social)

  1. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Thursday, 17-Sep-2026 11:15:30 JST Martin Martin

    "This camera is missing Android security updates for the last eight years." https://micahflee.com/flock-cameras-are-riddled-with-security-vulnerabilities-and-hard-coded-credentials/

    In conversation about a month ago from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: storage.ghost.io
      Flock cameras are riddled with security vulnerabilities and hard-coded credentials
      This morning, DDoSecrets published an exciting new dataset: Filesystem images of the partitions from an in-use Flock ALPR camera. 404 Media and Wired published a joint investigation into it. I downloaded the dataset and am now thoroughly nerd-sniped. Hackers from a collective called stegan0gram collected the data. “Why
  2. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Saturday, 11-Jul-2026 10:47:59 JST Martin Martin

    If you use Signal to work with sensitive contacts, it’s not a “set it and forget it” app. You do need to maintain the safety of your account. Fortunately it's pretty easy to do. Check out our guide: https://freedom.press/digisec/blog/signal-account-safety/

    In conversation about 3 months ago from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: media.freedom.press
      What journalists need to know about Signal account safety
      from @mshelton
      There are a few straightforward steps you can take to make your account and identity much more secure
  3. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Thursday, 09-Jul-2026 08:11:01 JST Martin Martin
    in reply to
    • Paul Cantrell

    @inthehands Here's our comprehensive Signal guide. https://freedom.press/digisec/blog/locking-down-signal/

    In conversation about 3 months ago from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: media.freedom.press
      Locking down Signal
      from @mshelton
      Also available in Spanish.
  4. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Friday, 03-Jul-2026 08:57:46 JST Martin Martin

    Hoo boy. I am analyzing this to learn more about how it happened. I will have a writeup about how newsrooms can prevent Signal username hijacking risks. https://www.dropsitenews.com/p/intercept-signal-tip-line-breach-hack

    In conversation about 4 months ago from mastodon.social permalink

    Attachments

    1. No result found on File_thumbnail lookup.
      A Third Party Breached The Intercept’s Signal Tip Line and Has Been Soliciting Whistleblowers
      from Murtaza Hussain
      The news outlet changed its tip line this week, but has not informed potential sources or the public of the breach.
  5. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Tuesday, 30-Jun-2026 02:02:54 JST Martin Martin

    I don't know how any AI companies can justify being upset when someone copies content from them to train their models. https://arstechnica.com/tech-policy/2026/06/anthropic-claims-alibaba-defied-trump-to-attack-claude-and-steal-capabilities/

    In conversation about 4 months ago from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: cdn.arstechnica.net
      Anthropic says Alibaba must be punished for largest Claude cloning attack
      Alibaba allegedly used 25,000 accounts to mine Claude over 28.8 million exchanges.
  6. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Thursday, 04-Jun-2026 13:23:38 JST Martin Martin

    We're seeing a fun new iteration on "Signal Support" scam attacks. Now attackers aren't just trying to hijack Signal accounts, but they are also trying to get targets' backup recovery keys.

    Simply put, Signal will not reach out to you from a support account. Report and move on.
    https://freedom.press/digisec/blog/psa-signal-backup-hijacking-attack/

    In conversation about 5 months ago from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: media.freedom.press
      PSA: Signal backup hijacking attack
      from @mshelton
      Now there are yet more reasons to look out for Signal Support scams
  7. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Saturday, 14-Mar-2026 15:14:47 JST Martin Martin

    It takes engineering hours to remove a feature. Even if few people use it, why go out of your way to remove it? Meta’s hurting its users. And for what? https://www.theverge.com/tech/894752/instagram-end-to-end-encryption

    In conversation about 7 months ago from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: platform.theverge.com
      Instagram is getting rid of end-to-end encrypted DMs that ‘very few’ people used
      from Emma Roth
      E2EE has become a target of federal regulators.
  8. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Friday, 13-Mar-2026 14:30:02 JST Martin Martin
    in reply to

    Signal's recent disclosure of how little it could share in response to a grand jury subpoena is pretty telling. Its defaults are very strong. But if you want to go further, we have a guide on really how to really maximize its privacy settings. https://freedom.press/digisec/blog/locking-down-signal/

    In conversation about 7 months ago from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: media.freedom.press
      Locking down Signal
      from @mshelton
      Also available in Spanish.
  9. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Friday, 13-Mar-2026 14:30:02 JST Martin Martin

    Signal recently released another grand jury subpoena which, as always, basically had nothing interesting to turn over in response. For the requested phone numbers they could only provide the account creation timestamp. https://signal.org/bigbrother/district-of-columbia/

    In conversation about 7 months ago from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: signal.org
      Grand jury subpoena for Signal user data in the United States District Court for the District of Columbia
      from @signalapp
      Signal end-to-end encrypts both content and metadata by default far beyond most of our peers. Our aim is to have access to as close to no data as possible, meaning that we have a fraction of the personal information compared to the average communications service. We simply don’t have access to th...
  10. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Wednesday, 04-Feb-2026 09:13:53 JST Martin Martin

    We're getting a lot of questions about Signal group chats, and how to use them as safely as possible. Share widely! https://freedom.press/digisec/blog/signal-group-safety/

    In conversation about 9 months ago from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: media.freedom.press
      Maximizing Signal group chat safety
      from @mshelton
      Larger groups come with more risk to your privacy, but you can make decisions about how to navigate Signal groups safely.
  11. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Wednesday, 04-Feb-2026 08:47:28 JST Martin Martin
    in reply to
    • Joshua Thayer

    @joshua 50 feet? Wonder why they're flying so low.

    In conversation about 9 months ago from mastodon.social permalink
  12. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Wednesday, 14-Jan-2026 17:19:32 JST Martin Martin
    • Freedom of the Press

    We're hiring. If you or someone you know are looking for a role in HR/finance, @freedomofpress is a great place to work. https://freedom.press/careers/job/?gh_jid=4649061005

    In conversation about 9 months ago from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: media.freedom.press
      Job Description
      Defending press freedom for the next generation
  13. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Thursday, 04-Dec-2025 02:45:02 JST Martin Martin

    I receive a shiny new YubiKey, but my 2FA is on my previous two YubiKeys.

    The result: I now use three YubiKeys.

    In conversation about 11 months ago from mastodon.social permalink
  14. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Monday, 23-Jun-2025 10:53:40 JST Martin Martin

    I work in press freedom. The news is bleak, and I know journalists feel it too.

    I hope you will support the news in whatever way you can to ensure they can do the work. It’s not their fault things suck, they’re just working their asses off to help get you fact checked information. Get them paid.

    In conversation Monday, 23-Jun-2025 10:53:40 JST from mastodon.social permalink
  15. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Friday, 13-Jun-2025 02:24:56 JST Martin Martin
    • Electronic Frontier Foundation
    • Freedom of the Press

    A joint project of @freedomofpress and @eff: Journalists have been asking us about how to prepare devices for travel. We put together a checklist of things you can do. https://freedom.press/digisec/blog/border-security/

    In conversation Friday, 13-Jun-2025 02:24:56 JST from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: media.freedom.press
      Preparing devices for travel through a US border
      from @FreedomOfPress
      US border searches of electronic devices put journalists’ work at risk. But there’s a lot you can do to be prepared
  16. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Wednesday, 30-Apr-2025 03:28:54 JST Martin Martin

    Cooking something at work on identifying people on Signal. As always, I like to include illustrative screenshots.

    In conversation Wednesday, 30-Apr-2025 03:28:54 JST from mastodon.social permalink

    Attachments


    1. https://files.mastodon.social/media_attachments/files/114/422/656/311/253/192/original/d5dff34545af792f.png
  17. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Tuesday, 25-Mar-2025 06:15:35 JST Martin Martin

    To help confirm someone's identity, Signal offers nicknames and information about the groups you share in common with your contacts. Make sure you're inviting the right person to your group. Learn about Signal's identifiers: https://freedom.press/digisec/blog/signal-identifiers/

    In conversation Tuesday, 25-Mar-2025 06:15:35 JST from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: media.freedom.press
      Understanding every one of Signal’s identifiers
      from @mshelton
      We’ve heard some questions about the difference between Signal usernames, phone numbers, profile names, profiles, and nicknames. Let’s talk about it.
  18. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Wednesday, 19-Mar-2025 10:45:25 JST Martin Martin

    The tech world has a habit of framing narratives around progress and inevitability — that only backward-looking people get in the way. Notice where this happens with narrative-building in our politics. Don't let anyone convince you of unidirectional progress, nor inevitability. It’s another tactic.

    In conversation Wednesday, 19-Mar-2025 10:45:25 JST from mastodon.social permalink
  19. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Sunday, 23-Feb-2025 04:16:52 JST Martin Martin
    in reply to

    Just remembering one time when a guy jumped into my mentions to defend Elon after I shared recall data. I think the guy turned out to be the president of a Tesla owners club.

    In conversation Sunday, 23-Feb-2025 04:16:52 JST from mastodon.social permalink
  20. Embed this notice
    Martin (mshelton@mastodon.social)'s status on Sunday, 23-Feb-2025 04:16:52 JST Martin Martin

    The National Highway Traffic Safety Administration is also responsible for issuing safety recalls. The Cybertruck alone had seven in 2024.
    https://apnews.com/article/musk-trump-autonomous-selfdriving-doge-auto-safety-99b369c5e3ccd3e7c09b6951604b3a0a
    https://www.cnet.com/roadshow/news/every-tesla-cybertruck-recall-thats-happened-so-far/

    In conversation Sunday, 23-Feb-2025 04:16:52 JST from mastodon.social permalink

    Attachments

    1. Domain not in remote thumbnail source whitelist: dims.apnews.com
      Musk’s cost-cutting team is laying off workers at the auto safety agency overseeing his car company
      from https://apnews.com/author/bernard-condon
      Elon Musk’s cost-cutting team is eliminating jobs at the vehicle safety agency that oversees Tesla and has launched investigations into deadly crashes involving his company’s cars.
    2. Domain not in remote thumbnail source whitelist: www.cnet.com
      Every Tesla Cybertruck Recall Since the Vehicle Was Released
      from @CNET
      Tesla's truck had seven recalls in 2024.
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    Martin

    Martin

    Security therapist. Deputy Director of Digital Security @freedomofpress. Journalism, digital security, research.If you want to get security news and updates from our team somewhere that's not Twitter, subscribe to the newsletter: https://freedom.press/newsletters/

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          22 Nov 2022
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          GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.

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