TapInfo/Trust Centre

The NFC card you can trust, and check.

Most NFC cards store a direct link that works forever, for whoever holds the card. TapInfo was designed the other way round: the chip holds a random ID, every tap passes through a resolver, and you decide what happens next. This page shows every control, its value, and where that value comes from.

Product rule true by how TapInfo is builtUK law required by UK lawCommitment a public promiseProposed target value, being confirmedTo confirm depends on a choice not yet made

Last reviewed 9 October 2026 · Owner: Security lead · 31 controls published

Seven principles

01

Your identity is yours

You can export it, move it or delete it. A card is something you hold; the identity behind it belongs to you, and to your organisation only for work credentials it issued.

02

The chip holds a link, nothing personal

A TapInfo chip stores a short tapinfo.io address with a random ID. No name, number or email is written to the card, so a lost card gives away nothing on its own.

03

Every tap can be stopped at the source

Taps pass through the TapInfo resolver. That’s what lets any card be suspended, replaced or revoked without touching the card itself.

04

Nothing is shared without a tap

Your profile shows what you choose. People who tap see that, and nothing more. We never sell data and we don’t run ad tracking.

05

Organisations control credentials, not people

Admins can issue and revoke work cards and see how they’re used. They can’t read anyone’s private notes or personal profile fields.

06

We say what’s live

Every capability is listed with its real status. A feature in development is labelled as one, everywhere.

07

Problems are reported and fixed in the open

Security reports get a reply within two working days, and fixes are logged publicly once users are safe.

SAFE: the five layers

SAFE is TapInfo’s security framework. It covers everything between a card in someone’s hand and the data behind it, in five layers. Each layer lists its controls, the value we hold ourselves to, and the source of that value.

CredentialLayer 1
ResolverLayer 2
IdentityLayer 3
OrganisationLayer 4
DataLayer 5
LAYER 1

Credential

What’s physically on the card or tag, and what it can and can’t do.

ControlValueSource
Data written to the chipOne HTTPS link: tapinfo.io/c/ + random IDNo personal data on the card.Product rule
Credential ID128-bit random, never sequentialIDs can’t be guessed or counted through.Proposed
Chip write-lockLocked permanently after encodingNobody can rewrite a TapInfo chip with a phone app.Proposed
Clone resistanceCryptographic chips (NTAG 424 DNA, SUN messages): each tap signs a one-time codeA copied card fails verification.To confirm
Metal cardsSealed NFC inlay on the back; the chip sits under itProduct rule
LAYER 2

Resolver

The service every tap passes through. This is where control lives.

ControlValueSource
Revocation takes effectUnder 60 seconds, worldwideMeasured from the admin action to the next tap.Proposed
Suspend and reactivateInstant, reversible, loggedProduct rule
What a revoked card showsA neutral notice. No name, no company, no historyProduct rule
Transport securityHTTPS only, TLS 1.2+, HSTS preloadedProposed
Enumeration protectionRate limits per IP and per ID; unknown IDs return the same page as revoked onesProposed
Availability target99.9% monthly, public status pageProposed
Tap pagesAlways served from tapinfo.io with a verified badgeA card that opens anywhere else isn’t a TapInfo card.Commitment
LAYER 3

Identity

Your TapID and profile: who controls them and how they’re protected.

ControlValueSource
PersistenceTapID survives every credential changeProduct rule
Field visibilityShow or hide each field; changes apply on the next tapTo confirm
Sign-inPasskeys or email link plus two-factor; no SMS-only codesProposed
Session controlSee and sign out every deviceProposed
LAYER 4

Organisation

What a company can do with the credentials it issues, and where that stops.

ControlValueSource
RolesOwner, Admin, MemberProposed
OffboardingRevoke every credential a person holds in one actionProduct rule
ReassignmentA returned card can resolve to a new person’s TapIDProduct rule
Audit logEvery issue, replace, reassign, revoke and role change, with who and when; kept 24 monthsProposed
Admin visibilityWork profile and credential activity only. Never personal notes or personal fieldsCommitment
Brand controlApproved designs only for team cardsTo confirm
LAYER 5

Data

What we store, where, for how long, and how you get it back or remove it.

ControlValueSource
Encryption in transitTLS 1.2+ everywhereProposed
Encryption at restAES-256 for databases and backupsTo confirm
Hosting regionUK or EUTo confirm
Tap records kept24 months, then reduced to anonymous countsProposed
ExportSelf-serve: JSON, CSV and vCardProposed
Account deletionLive data within 30 days, backups within 35Proposed
Subject access requestsAnswered within one monthUK law
Breach notificationTo the ICO within 72 hours; to affected users without undue delayUK law
Selling data or ad trackingNeverCommitment

Threats we design for

The most common NFC card stores a direct web link on an unlocked chip. Here is what happens with that design, and with TapInfo, when things go wrong.

If…A card with a direct linkA TapInfo card
You lose your cardWhoever finds it opens your profile, indefinitely.Revoke it from your phone. The card shows a neutral notice from the next tap.
Someone leaves your companyTheir card keeps pointing at their old profile or your company page.An admin revokes or reassigns it. The relationships they made stay with you.
A card is copiedThe copy works for as long as the original does.Revoke the original ID and every copy dies with it. On cryptographic chips, copies fail from the start.
A chip is rewrittenUnlocked chips can be rewritten by any free phone app, sending taps to a stranger’s page.TapInfo chips are write-locked when encoded.
A fake tag is plantedNo way to tell a fake from a real one.Real TapInfo taps always open on tapinfo.io with a verified badge, and anyone can check a card ID.
Someone tries to scrape profilesSequential or short IDs can be counted through.Random 128-bit IDs and rate limits make guessing pointless.

Ten questions to ask any NFC card provider

Use these to compare providers, including us. Each one links to our answer on this page.

  1. What exactly is written to the chip?Our answer →
  2. Can a lost card be switched off without the card in hand?Our answer →
  3. How long does revocation take to apply?Our answer →
  4. Can the chip be rewritten by someone else?Our answer →
  5. Can a card be copied, and what happens if it is?Our answer →
  6. When an employee leaves, who keeps the contacts they made?Our answer →
  7. Can admins read personal notes?Our answer →
  8. Where is data hosted, and for how long is it kept?Our answer →
  9. Can I export everything, in what formats, without asking?Our answer →
  10. Do you publish which features are live?Our answer →

Check a card

Every TapInfo card opens on tapinfo.io and shows its ID. Enter it here to see whether the card is genuine and active. If a card opens anywhere else, it isn’t a TapInfo card.

Try 7Q4M-R29X, K2PD-81VA or H7TW-3ZQE.

Preview Checks against sample IDs. On tapinfo.io this queries the live resolver and returns the same result a tap would.

Credential lifecycle

Every card and tag is in exactly one state. States are shown with a symbol and a word, never colour alone. Every change is logged.

Lifecycle: issued cards become active. Active cards can be suspended and reactivated, replaced, reassigned to a new person, or revoked. Revoked is final. ISSUED ■ ACTIVE ‖ SUSPENDED ↻ REPLACED ⇄ REASSIGNED ✕ REVOKED activate pauseresume new card new owner final
StateWhat a tap showsReversible
ACTIVEThe owner’s profile, with the fields they’ve chosen—
SUSPENDEDA neutral “paused” notice. Nothing about the ownerYes, instantly
REPLACEDThe old card shows a neutral notice; the new card opens the same TapIDNo; issue another card
REASSIGNEDThe new holder’s profile. The previous holder’s data is never shownBy reassigning again
REVOKEDA neutral notice, identical to an unknown IDNo

Organisation controls

When a company issues cards, it controls those cards. It doesn’t get access to its people’s private lives.

ActionOwnerAdminMember
Issue, replace and revoke work cards✓✓—
Reassign a returned card✓✓—
Offboard a person (revoke all their work cards)✓✓—
Approve team card designs✓✓—
See work card activity✓✓—
Read audit log✓✓—
Change roles and billing✓——
Edit own profile fields✓✓✓
Read anyone else’s personal notes———

Proposed Role names and permissions are being finalised.

Security practice

How we build and run TapInfo, beyond the product controls above.

  • Every code change is reviewed by a second person before release. Proposed
  • Dependencies are scanned automatically and patched on a schedule; critical issues are patched within 7 days. Proposed
  • Production access is limited to named people, uses hardware keys, and every access is logged. Proposed
  • Secrets are kept in a managed vault and rotated; none live in code. Proposed
  • Backups are encrypted, tested by restoring them, and kept for 35 days. Proposed
  • This website sends strict security headers (HSTS, Content Security Policy, no third-party trackers) and publishes a security.txt file. Commitment
  • Independent penetration test before general availability, with a summary published here. To confirm

We don’t claim certifications we don’t hold. When TapInfo is certified (for example Cyber Essentials or ISO 27001), the certificate will be linked here.

Privacy and your data

What we hold, why, for how long, and who can see it. The full legal text is in our privacy policy.

WhatWhyKept forWho can see it
Profile fields you publishTo show people who tapUntil you remove themAnyone who taps, only the fields you choose
Account email and sign-in recordsTo sign you in and protect your accountLife of the account; sign-in logs 12 months ProposedYou
Tap records (time, card, approximate city)So you can see activity24 months, then anonymous counts ProposedYou; admins for work cards
Relationship records and notesYour memory of introductionsUntil you delete themYou. Never admins
Details someone shares with youSo they can send you their detailsUntil you or they delete themYou
Orders and invoicesTax and accounting6 years UK lawYou; our finance team
Card payment detailsTaking paymentHeld by Shopify, our checkout providerWe never see full card numbers

Your rights, in practice

  • Export: download everything as JSON, CSV and vCard from your account, any time. Proposed
  • Delete: close your account and live data is erased within 30 days, backups within 35. Proposed
  • Ask: email privacy@tapinfo.io for a copy of your data. We reply within one month. UK law
  • Complain: you can contact the Information Commissioner’s Office at ico.org.uk.

Data controller: Company legal name, ICO registration ICO registration number. Data is hosted in the UK or EU.

Subprocessors

Companies that process data for us. We give 30 days’ notice before adding one. Commitment

CompanyWhat forWhere
Hosting providerApplication hosting and databaseRegion
Email providerSign-in links and receiptsRegion
ShopifyCheckout, card payments and orders. We never see full card numbersRegion
Print and fulfilment partnerCard and tag productionRegion
Royal MailDeliveryUnited Kingdom

Status and availability

The resolver is the one part of TapInfo that has to be up for a tap to work. We target 99.9% monthly availability and publish incidents with a timeline and cause. Proposed

Live status: status.tapinfo.io To confirm

If the resolver were ever unreachable, a tap shows the browser’s connection error. It never falls back to another site.

Report a vulnerability

If you find a security problem in TapInfo, its cards, or this website, tell us. We won’t take legal action against good-faith research that follows this policy.

  • Where: security@tapinfo.io
  • We reply within 2 working days, confirm or rule out the issue within 5, and agree a fix date with you. Commitment
  • In scope: tapinfo.io and its subdomains, the TapInfo apps, the resolver, and TapInfo cards and tags.
  • Please don’t: access other people’s data, run denial-of-service tests, or use social engineering.
  • Credit: with your permission, we thank you by name here once the fix is out.

Machine-readable contact details are published at tapinfo.io/.well-known/security.txt.

What’s live

Every capability has one of five states: Available, Controlled rollout, In development, Direction, Not supported. Nothing is marked Available until it’s in customers’ hands.

CapabilityStatus
TapID persistent identityAwaiting confirmation
NFC cards with activationAwaiting confirmation
Tap TagsAwaiting confirmation
Suspend, replace and revokeAwaiting confirmation
Reassign to a new personAwaiting confirmation
QR sharingAwaiting confirmation
Apple WalletAwaiting confirmation
Google WalletAwaiting confirmation
Relationship records with notesAwaiting confirmation
Team admin and rolesAwaiting confirmation
Audit logAwaiting confirmation
AnalyticsAwaiting confirmation
Self-serve exportAwaiting confirmation
Cryptographic (clone-resistant) chipsAwaiting confirmation
Card status checkerAwaiting confirmation