A movement can become harder to observe at the same time it becomes easier for its participants to coordinate.
Encrypted messaging makes that possible.
Activists may choose Signal, WhatsApp, or similar tools because the audience is defined, communication is immediate, and messages are not exposed as ordinary public webpages. That can matter when participants are worried about surveillance, harassment, employment consequences, hostile attention, or simply discussing plans that are not intended for strangers.
Research on activists using encrypted messaging after the U.S. Supreme Court’s 2022 Dobbs decision found recurring themes of safety and security, convenience, coordination, authenticity, and fear. Interviewees described apps such as Signal and WhatsApp as useful precisely because they could keep communication away from broader observation. See How pro- and anti-abortion activists use encrypted messaging apps in post-Roe America.
That study involved activists on opposing sides of one contentious issue, which makes the broader point especially clear: the privacy incentive is not unique to one political position.
A smaller audience changes participation
Public organizing creates visibility.
It can recruit newcomers, leave searchable documentation, and let outsiders understand what a group is doing.
Private encrypted groups trade some of that reach for control.
Participants can decide who belongs in the room. Sensitive logistics can stay inside the group. Members may speak more candidly because they are not performing for an unlimited audience.
The cost is that researchers, journalists, search engines, and curious members of the public cannot observe the activity the same way they can inspect a public forum or website.
Quiet outside does not mean quiet inside
This matters to Dead Internet Theory because public visibility can collapse while human coordination continues.
A movement that once used public mailing lists, forums, blogs, or social-media pages may later rely on several encrypted group chats. Search engines then show fewer discussions even if the number of active participants has not fallen.
That does not mean private tools should be treated as mysterious proof of hidden activity. If outsiders cannot see a group, they also cannot confidently measure what is happening inside it.
The correct conclusion is narrower.
Reduced public evidence is not the same thing as evidence of inactivity.
Sometimes the humans really did leave the public square.
They did not necessarily go home.