Micah LeeJun 16, 2025
I wrote about how to turn in-person meetings into Signal groups, how to manage large semi-public Signal groups while vetting new members, and how to use announcement-only Signal groups, perfect for rapidly responding to ICE raids https://micahflee.com/using-signal-groups-for-activism/
Using Signal groups for activism

Things are heating up. Millions of people are taking to the streets against Trump's rising authoritarianism. Communities around the US are organizing to defend against ICE raids, to protest Israeli genocide, for mutual aid, and for other forms of fighting fascism. Signal can help people safely organize in all of

micahflee
Show threadCody Casterline 🏳️‍🌈

@micahflee Good article -- I learned some things.

But, right after talking about being in a group with 500 members, you say:

> […] a Signal group [is] all private, and it can't be shared with law enforcement.

A conversation with 500 people isn't private. Any one of their (possibly multiple) devices might be hacked, or confiscated by law enforcement. Some of the members may BE law enforcement.

It's important not to oversell the security of the protocol w/ such a big attack surface area.

Jun 16, 2025 at 8:45pmWeb
Show threadAndy MouseJun 16, 2025

@NfNitLoop This. Not to mention each of those 500 members are identified with their phone numbers, and there is no real indication (except "we promise") that Signal isn't passing along group memberships to law enforcement to begin with.

Just use email or whatever texting app you already have. Or use an actually secure alternative, i.e. one where you do not have to provide your phone number to use the service and there is not a single US-based company hosting all the communications.

@micahflee

Show threadnoplasticshowerJun 17, 2025
@NfNitLoop @micahflee this seems to have happened with the DoD. LoL.