[SCPF] (ISD) Internal Security Department #5503526

members (measured 3 Oct 2026, 04:23 UTC)

13 January 2020

created (per Roblox API)

10 August 2026

first measured by this register

Game fan groupsENSCP FoundationRoleplaySecret Police

Description

ISD is a concealed "Foundation within the Foundation", a secret police force responsible for filtering traitors as well as operational and information security risks among the Foundation's ranks. The department is strictly hierarchical, adhering to stringently defined multi-stage investigative protocol.

Written by the group; not a statement by this register.

Membership history

Growth

Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
28 Sept 2026, 19:21	4	first reading

Ownership

Owned by Section (@salahnaser2) as measured.

Changed hands 1 time

Transferred from user #890374487 to user #239460045 — observed between sweeps, detected 21 Sept 2026, 18:20 UTC

Detection dates bound when a change was seen by this register, not when it happened.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Members we’ve seen

TheFounder (@lemmon_213K) — X | O5-X (rank 254)

@Walkonairx — Member (rank 1)

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

TA | The Administrator1

X | O5-X1

ISD | Internal Security Director0

O5 | Internal Security Overseer0

ISA | Internal Security Agent1

Member4

PA | Probationary Agent0

Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

Related groups

Groups whose measured members overlap with this one — a sample from our membership graph.

[SCPF] Special Containment Procedures Foundation#2694395 · 2 shared members

76,444

SCPF (Special Containment Procedure)#5273565 · 2 shared members

166

[SCPF] MTF (Mobile Task Forces)#5288527 · 2 shared members

[SCPF] (SD) The Security Department#5300303 · 2 shared members

[SCPF] (Nu-7) "Hammer Down"#5981234 · 2 shared members

[SCPF] (EC) Ethics Committee#5981152 · 2 shared members

[SCPF] (MaD) Manufacturing Department#8505200 · 2 shared members

[SCPF] (AD) Administrative Department#7871114 · 2 shared members

[SCPF] (OD) Overwatch Division#6297806 · 2 shared members

[SCPF] (E&T) Engineering & Technical Department#5981081 · 2 shared members

[SCPF] (B-7) "Maz Hatters"#5981257 · 2 shared members

[SCPF] (SCD) Science Division#5981047 · 2 shared members

Open data

Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)

Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.