Security 51 Fake Documents & Forgeries
When the stamp is right but the paper is lying.
Perfect paperwork is sometimes the scariest paperwork in Security 51. Alawar trains you on obvious mismatches first — wrong names, bad photos, clearance levels that do not match the bulletin — then introduces documents that look flawless until you know which field the forger forgot. Playtest patch v0.0.1.105 reworked validation so visitors may carry incorrect passport or pass numbers while names still align, and fake medical certificates became reliably distinguishable after tutorial updates. This guide documents forgery types, post-patch tells, and how to cross-read Document Verification without getting fooled by confidence.
Pair with Getting Started, Early Shifts Walkthrough for day-five cert days, and Spotting Anomalies when the body contradicts the ink.
Post-patch number mismatches
Before v0.0.1.105, guards could over-rely on name matches. After the patch, passport numbers and facility pass numbers may disagree with the on-screen record even when spelling looks correct. Always compare:
- Full name across passport, pass, and verbal confirmation
- Numeric ID fields on every document — not only the headline name
- Photo likeness versus person present (glasses in ID photo are a common demo trap)
- Clearance level and time window against the shift manual
Deny when numbers conflict unless the bulletin explicitly overrides — rare. Log the pattern in Verification Checklist until it becomes muscle memory.
Fake medical certificates
Steam community notes flagged medical forgeries as too subtle early in playtest; Alawar updated art and tutorial text so fakes are identifiable during inspection. Typical tells players report:
- Wrong issuer formatting or seal placement versus bulletin examples
- Dates outside the shift window or impossible treatment timelines
- Names that match passport but cert body references a different department
- Certificates presented when bulletins do not require them — unnecessary paper is a bait flag
Early Shifts Walkthrough calls out medical certificate days explicitly. Re-read bulletins each morning via Start Day — rules change without warning.
Too-perfect documents
Official store copy warns about papers that seem too perfect — every field aligned, every stamp crisp, no wear on a janitor who should look tired. Forgeries sometimes over-correct:
- Identical handwriting across unrelated forms
- Clearance higher than role suggests without escort paperwork
- Verbal answers that match text exactly but sound rehearsed
Behavioral tells belong in Spotting Anomalies. Combine ink and body checks before allow.
Photo and identity traps
Demo footage highlights sunglasses in ID photos, swapped faces, and visitors whose elevator count does not match headcount logs. Photo mismatch alone often means deny even when numbers align — unless bulletin says otherwise.
Duplicate staff — same papers as someone who already went home — are document forgeries of a different kind. See Elevator Headcount and Infection Containment for duplicate escalation.
Tools that catch forgeries
Documents are only layer one:
- X-ray reveals contraband and impossible anatomy — X-Ray Scanning
- Fingerprints catch identity swaps when numbers were cloned — Fingerprint and Blood Tests
- Blood tests confirm infection when papers are clean — same guide
Quarantine when tools disagree — Quarantine Protocol.
Shift discipline under forgery pressure
Forgery days spike queue length. Shift Performance & Bonuses rewards efficient processing, but speed that skips number compares seeds Endings branches. Use Shift hotkey (see Hotkeys) to swap desk and visitor views without losing cursor position.
Demo versus full game
Demo covers medical certs and number mismatches on the post-patch build. Full release adds deeper biometric forgery challenges — Demo vs Full Game. Mid-Game Shifts Walkthrough routes when forgeries stack with infection bulletins.
Patch alignment
When Alawar ships new validation rules, check Launch Patch Notes before trusting old muscle memory. Wiki guides update when Steam news confirms changes.
No promo codes
Fake documents are gameplay — not redeem codes. Security 51 has no promo codes; skill beats cheats.
Fake documents in Security 51 reward clerks who read numbers, not heroes who trust faces. Compare every field, distrust perfect stacks, and let biometrics argue when ink insists everyone is fine.
Frequently Asked Questions
Quick answers to the most common questions.
Did Security 51 change document validation in patches?
Yes. v0.0.1.105 allows incorrect passport or pass numbers and improves fake medical certificate detection with tutorial updates.
Should I deny when only the photo mismatches?
Usually yes unless the bulletin overrides. Photo checks are core to Document Verification and early demo lessons.
How do I spot fake medical certificates?
Compare issuer format, dates, and department against bulletin examples. Post-patch art makes many forgeries identifiable on inspection.
Can perfect paperwork still be wrong?
Yes. Store copy warns about documents that seem too perfect. Cross-check behavior, biometrics, and headcount when papers look flawless.
Do forgeries tie to infection?
Clean forgeries may hide infected staff. Combine this guide with Infection Containment and blood testing when bulletins require it.