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Graham Cluley

Mastodon: What you need to know for your security and privacy

If you’re leaving Twitter for Mastodon, here are some things you should know.

grahamcluley.com/mastodon-what

Please reblog/boost if you think this would help folks you know who are new to Mastodon. (Likes are appreciated, but won't help spread the advice)

32 comments
JJ

@gcluley Reposting over Twitter as it'd make more sense to my few followers there!

That's a pretty handy guide, thanks for that!

Graham Cluley

@jprxts cheers! I appreciate it.

It's great to see such a swell of cybersecurity folks here on the elephant.

Donncha Ó Caoimh

@gcluley and for more advanced users, put your blog on Mastodon! I don't mean share your content through your account. Actually make your blog it's own instance!

I wrote a blog post which I'm not going to link to, but you can find it at @donncha@odd.blog to see how it looks in Mastodon. :)

Graham Cluley

@donncha@mastodon.ie @donncha@odd.blog Thanks, I'd heard about this - but haven't explored it yet. Sounds interesting. :)

Adroittellurian☑️

@gcluley
Great information and I agree with it wholeheartedly. Especially the security aspect. I haven't known my passwords for a couple years now because of exactly what is mentioned here. I use Yubikey to generate passwords and I couldn't tell you what one of them is.
Great article!

🌌 ~Stardust Diving~ 🌌

@gcluley w/r/t the DM issue i think it's really meant to be a regular fediverse post directed to one (or more) mentioned users rather than an inbox-type thing

Graham Cluley

@violet_cerue Yes, I understand.

The problem is that many users will be used to the idea of "direct messages" working rather differently on other sites, and so won't realise that Mastodon direct messages are quite a different thing.

Ideally they'd be called something else to avoid confusion. Actually, ideally there would be real direct messages between users rather than the current hodge-podge.

🌌 ~Stardust Diving~ 🌌

@gcluley I agree that it can be made more clear. I only point it out because a lot of writeups and complaints about this feature also give the impression that it's a badly-implemented private messaging system, rather than just another privacy setting for posts.

I personally don't care about having an inbox-style messaging system at all; other tools (Signal, Jami, etc) seem more appropriate that. But YMMV.

Tom Eston :verified:

@gcluley the DM situation is going to be a change for most birdapp refugees. It’s really meant for directing a toot towards one person via toot permissions and there should be no expectation of privacy.

Graham Cluley

@agent0x0 Yes, I can see a lot of people accidentally goofing up with this on Mastodon. :(

Erik Warming

@gcluley Thank you Graham. Will you cover it on smashing security? I listen to it every week, its my lissen on the Thursday commute

Graham Cluley

@erikwarming Thanks for being a regular listener Erik. Yes, I just got off the recording with Carole for Thursday's episode of the podcast - where we'll discuss this in some more detail. :)

Eingfoan :donor:

@gcluley

2Fa with passkey Fido is a bit missing

Thy for the good read

Graham Cluley

@eingfoan I do mention hardware-based authentication keys in passing - but maybe i should expand that.

Eingfoan :donor:

@gcluley I would not call it hardware so much since passkey is also syncing in software right? Or do I misunderstand sth

Graham Cluley

@eingfoan I apologise, I misread your response.

I was talking about YubiKeys and their ilk.

Incredibish

@gcluley Thanks for the advice and gosh, a long time since I read you on #BOFH. I've got 2FA set up but I think I'm having trouble following the advice wrt verification?

Jeroen

@gcluley

"If you're interested in having your Twitter Verified account verified for use in the fediverse ("Fedified"), please follow the instructions on this very short form"
mastodon.social/@DataDrivenMD@

Michael Leuty

@gcluley Please may I ask: does the 'verification' link have to be on the home page of the website or can it be on the Links page?

jmorahan

@MichaelLeuty It has to be on the page that you link to. But it doesn't have to be a visible <a> link - a <link> tag in the <head> section also works.

Michael Leuty

@jmorahan Many thanks for the advice. The site is WordPress and I don't know how to edit the <head> section, but I put the link tag right at the bottom of the home page with no text between <a> and </a>. It's invisible and the site is now verified. Thanks again.

0ddj0bb

@gcluley the "mastodon admin can read your dms" is pretty much feature parity with twitter tho

Stíofán MacThomáis

@gcluley Excellent post! Hope this makes it out to the westerly wilds!

Stephen Shankland

@gcluley Good intro — thanks. Particularly appreciated the more nuanced discussion of DM risks.

Graham Cluley

@stshank yes, I worry a lot of folks may get caught out by that

sheislaurence

@gcluley i didn’t know about the #greentick #Mastodon #verification of websites (pointing at Mastodon profile & vice-versa), that’s neat, thanks!

Tom Watson

@gcluley @neil Do only some Mastodon servers support 2FA? I can't seem to find the option on glasgow.social

Huzzam

@gcluley why on earth aren't mastodon dms end to end encrypted? Seems like a serious design failure...

DELETED

@gcluley
Excellent stuff. Much appreciated

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