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Meredith Whittaker

@meredithmeredith.bsky.social

President of Signal, Chief Advisor to AI Now Institute

84,313 Followers  |  970 Following  |  414 Posts  |  Joined: 01.05.2023  |  2.4748

Latest posts by meredithmeredith.bsky.social on Bluesky

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Signal President Meredith Whittaker joins The Moynihan Report YouTube video by The Moynihan Report

Looking for a convivial convo w me & Michael Moynihan covering everything from Snowden to Babbage to why Michael actually cares about privacy to our impoverished def of "AI" and the need to expand it?

๐Ÿ‘‰ 7pm EDT tonight, Nov 13th, streaming + archived thereafter: www.youtube.com/live/ZYNJ0zp...

13.11.2025 15:26 โ€” ๐Ÿ‘ 83    ๐Ÿ” 16    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 3

PSA: tips to protect yourself from scams on Signal.

Every major comms platform has to contend w phishing, impersonation, & scams. Sadly.

Signal is major, and as we've grown we've heard about more of these attacks--scammy people pretending to be something or someone to trick and abuse others. 1/

11.11.2025 18:13 โ€” ๐Ÿ‘ 524    ๐Ÿ” 233    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 12
Staying Safe from Phishing, Scams, and Impersonation We provide a privacy-first, end-to-end encrypted (E2EE) messaging and calling platform designed so only you and your intended recipients can communicate securely. Even with strong encryption, attac...

And finally finally, here's a resources you can share and reference with more about how to detect, and protect yourself from scammers and abusers. support.signal.org/hc/en-us/art... 7/

11.11.2025 18:17 โ€” ๐Ÿ‘ 107    ๐Ÿ” 18    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Signal Profiles and Message Requests Signal Profiles and Messageย Requestsย let people know who's messaging them. Read more: Signal Profiles Learn more Edit your Profile Profiles Blog Post Message Requests What is my Signal Profil...

Finally, to help you determine the fake and malicious from the genuine, we have signposts (support.signal.org/hc/en-us/art...) in the application that can aid you in identifying fakers and phishing attempts.

We also have tools like Registration Lock to help protect against account takeovers. 6/

11.11.2025 18:13 โ€” ๐Ÿ‘ 101    ๐Ÿ” 14    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

If you do receive a message you think is suspicious, report it as Spam and block the sender so that they cannot contact you again. AKA basic comms hygiene to preserve your peace. 5/

11.11.2025 18:13 โ€” ๐Ÿ‘ 92    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Contact Us Signal Support will never reach out to you first. We will only respond if contacted.There are two options to get in touch with Signal Support: Write in from within the app. Go to Signal Settings (p...

Contact with Signal (support.signal.org/hc/en-us/art...) or any Signal representative will ONLY come from an @signal.org email address, not from within the app.

And again, we will never ask for your PIN or verification code. And we do not reach out proactively, only in response to your requests.4/

11.11.2025 18:13 โ€” ๐Ÿ‘ 98    ๐Ÿ” 15    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

To be crystal clear: Signal will NEVER message you this way. Ever.

And just like with your bank details or passwords, NEVER EVER share your Signal verification code (SMS/Call) or PIN with anyone. Ever. 3/

11.11.2025 18:13 โ€” ๐Ÿ‘ 148    ๐Ÿ” 31    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Right now we're hearing about increased phishing attempts that go like this:

Attackers pretend to be Signal or Signal Support, then message people and try to get them to hand over their verification code or Signal PIN. Information that can let the attacker take over the victim's Signal account. 2/

11.11.2025 18:13 โ€” ๐Ÿ‘ 137    ๐Ÿ” 34    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 4

PSA: tips to protect yourself from scams on Signal.

Every major comms platform has to contend w phishing, impersonation, & scams. Sadly.

Signal is major, and as we've grown we've heard about more of these attacks--scammy people pretending to be something or someone to trick and abuse others. 1/

11.11.2025 18:13 โ€” ๐Ÿ‘ 524    ๐Ÿ” 233    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 12

Great expose on the status of attack capabilities at Cellebrite, the defense company used by homeland security agents to crack your phones both at the U.S. border, airports, and interior.๐Ÿ‘‡

30.10.2025 15:35 โ€” ๐Ÿ‘ 85    ๐Ÿ” 36    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0
Video thumbnail

Now on Desktop: Customizable chat folders

Keep healthy boundaries between friends & family or work & leisure.

Filter 1-on-1 and group chats, put all of your unread messages one place, or make project-specific folders for related chats.

Settings > Chats
Or right-click any chat

30.10.2025 19:39 โ€” ๐Ÿ‘ 494    ๐Ÿ” 79    ๐Ÿ’ฌ 16    ๐Ÿ“Œ 22
Preview
Wired and 404 Media make FOIA reporting free. Other news outlets should too We spoke to Katie Drummond of Wired, Joseph Cox of 404 Media, and Lauren Harper of Freedom of the Press Foundation about the case for unpaywalling public records-based reporting

When @wired.com made FOIA-based stories free, subscriptions went up.

When @404media.co published public records reporting without a paywall, new sources came forward.

We spoke to both about why dropping paywalls like this is good for journalism โ€” and for business.

30.10.2025 17:35 โ€” ๐Ÿ‘ 427    ๐Ÿ” 135    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 6

This thread does a better job of capturing why the cloud isnโ€™t merely โ€œrenting a bunch of serversโ€ than anything else Iโ€™ve seen recently.

27.10.2025 14:48 โ€” ๐Ÿ‘ 275    ๐Ÿ” 77    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 0

Apple runs on the hyperscalers, too.

27.10.2025 14:46 โ€” ๐Ÿ‘ 10    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Federation โ‰  decentralization.

This is a key misunderstanding & it's concerning. The infra on which a federated protocols/systems run must still be maintained/provisioned by someone. As we saw w all the 'decentralized' chains going down last week, such infra is often licensed from hyperscalers.

27.10.2025 14:07 โ€” ๐Ÿ‘ 22    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Informative thread.

27.10.2025 13:56 โ€” ๐Ÿ‘ 217    ๐Ÿ” 54    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 1

We do have a multi cloud approach.

27.10.2025 13:08 โ€” ๐Ÿ‘ 13    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1

You should do a bit of research on Signal and this question โค๏ธ

27.10.2025 12:17 โ€” ๐Ÿ‘ 28    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Matrix is distributed at the protocol/interop level. Not at the infrastructural level. People running their own Matrix servers also, generally, license hyperscaler infra to do so.

27.10.2025 11:43 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

This is a lieโค๏ธ

27.10.2025 11:41 โ€” ๐Ÿ‘ 53    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

We are spread across multiple hyperscalers and some smaller players.

27.10.2025 10:56 โ€” ๐Ÿ‘ 34    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Yes, we do.

27.10.2025 10:47 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1

Good thread from @signal.org CEO, @meredithmeredith.bsky.social underscoring our critical dependencies on a few key orgs, and an increasing challenge in organizational and national resilience. We have a lot of work to do. cc @gate15.bsky.social

27.10.2025 10:43 โ€” ๐Ÿ‘ 92    ๐Ÿ” 26    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Excellent thread that I kinda had been waiting for.
๐Ÿ‘‡

27.10.2025 10:42 โ€” ๐Ÿ‘ 190    ๐Ÿ” 35    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 1

To conclude: my silver lining hope is that AWS going down can be a learning moment, in which the risks of concentrating the nervous system of our world in the hands of a few players become very clear. And that this can help us craft ways of undoing this concentration and creating real choice โค๏ธ 13/

27.10.2025 10:38 โ€” ๐Ÿ‘ 1110    ๐Ÿ” 115    ๐Ÿ’ฌ 41    ๐Ÿ“Œ 14

So, Signal does what we can to provide a service w integrity in the concentrated ecosystem we're working in. We protect your comms w end-to-end encryption, so that we can use AWS and others as a highway across which to send Signal data in ways that donโ€™t let AWS, or anyone else, gain access. 12/

27.10.2025 10:38 โ€” ๐Ÿ‘ 626    ๐Ÿ” 20    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1

In short, the problem here is not that Signal โ€˜choseโ€™ to run on AWS. The problem is the concentration of power in the infrastructure space that means there isnโ€™t really another choice: the entire stack, practically speaking, is owned by 3-4 players. 11/

27.10.2025 10:38 โ€” ๐Ÿ‘ 1402    ๐Ÿ” 234    ๐Ÿ’ฌ 9    ๐Ÿ“Œ 28

So, yes, Signal runs on AWS. It also runs on your phone, which runs on iOS (Apple) or Android (Google). And on Dekstop, via Windows (Microsoft). Each of these presents similar dependencies on large entrenched tech companies, and concomitant barriers and risks. 10/

27.10.2025 10:38 โ€” ๐Ÿ‘ 767    ๐Ÿ” 37    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 1

But even if Signal had the billions needed to recreate AWS, itโ€™s not just about money. The talent to run these systems is rare & concentrated. The expertise, the tooling, the playbooks, the very language of modern SRE came out of these hyperscalers, and is now synonymous with 'the cloud.' 9/

27.10.2025 10:38 โ€” ๐Ÿ‘ 741    ๐Ÿ” 33    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 11

Meaning that infrastructure like AWS is not something that Signal, or almost anyone else, could afford to just โ€œspin up.โ€ Which is why nearly everyone that manages a real-time serviceโ€“from Signal, to X, to Palantir, to Mastodonโ€“rely at least in part on services provisioned by these companies. 8/

27.10.2025 10:38 โ€” ๐Ÿ‘ 719    ๐Ÿ” 30    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 5

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