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Notes for Zambian landlords

No. 10 · Tenant NRCs, payment proof and your privacy

Updated September 2026

No. 10 · Security and privacy

What happens to a tenant’s NRC and your payment proof

Asking a tenant for an NRC number, or sending a payment screenshot that may show other transactions, means trusting a system you cannot see inside. Most software answers that with a privacy policy nobody reads. This note is the specific answer instead.

For
Landlords, agents and owners who handle tenant identity and payment proof
Reading time
3 minutes
Fig. 1A payment screenshot and a tenant’s NRC, as they arrive and as Tezeka keeps them. The NRC number is an example.

In short

  • NRC and passport numbers encrypted, with the key kept apart
  • Location data stripped from photos before they are stored
  • Agents limited to their properties by the database itself
  • Admin access needs more than a password

02 · Side by side

The same details, two ways

In a chat or a spreadsheet

  1. An NRC number typed into a shared sheet
  2. A screenshot that still records where it was taken
  3. An agent who can see everything you can
  4. One password between anyone and everything

In Tezeka

  1. The NRC is encrypted before it is stored
  2. Location data removed before storage
  3. An agent sees only the properties you assign
  4. Admin access needs an approved device and a second factor

A privacy policy does not answer the real worry

The worry is not abstract. It is “if this is hacked, is it my tenant’s NRC that leaks?” or “can the agent I hired see my other properties?” A general privacy policy answers neither. What answers them is what is built into the system before anyone asks.

04 · How it works

The safeguards, one step at a time

These are not promises. Each is a specific mechanism, answering one part of the worry above.

  1. When entered

    NRC and passport numbers are encrypted with AES256 in GCM mode, before they are written anywhere.

  2. When uploaded

    Photos lose their location data, including GPS, before they are stored.

  3. On every query

    Agents are limited to their properties by row level security in the database, not just by the screen.

  4. At sign in

    Sensitive actions are rate limited to slow down anyone trying to guess.

  5. On every webhook

    Messages from providers are signature checked, and a replayed request is rejected.

  6. For admins

    Admin access needs an approved device and a second factor, never a password alone.

What Tezeka does, and does not do, with your money

Tezeka never receives or holds your rent. Tenants pay you directly, exactly as they do now. A payment screenshot is evidence you submit for checking, not a transaction that passes through Tezeka. The only money that goes through a payment provider is your own subscription to Tezeka, which is entirely separate from your rental income.

06 · Who this is for

Three people we had in mind

Collecting NRCs at move in

Landlords holding tenant details

You are handing over identity and payment information, and you want to know exactly what happens to it.

Living abroad, with an agent in Lusaka

Owners who delegate

You want your agent to see only what they need, enforced by the system rather than by trust alone.

An agent with several owners

Agents reassuring owners

You can point to how access is built: an owner’s other properties and billing are out of your view by design.

07 · What changes

What this means in practice

  • i

    A tenant’s NRC is never stored in plain text

  • ii

    An agent cannot reach another owner’s tenants

  • iii

    A screenshot cannot give away where it was taken

  • iv

    Nobody runs the system on a password alone

No. 0001

Date
Today
Received from
You
For
1 unit
Amount
K99 a month

Counterfoil. Keep for your records

Start here

Start with the property you have

Solo is K99 a month for 1 unit. Your tenants keep paying you directly by MoMo, Airtel Money or bank transfer. Tezeka never touches your rent.

08 · Questions

What landlords ask us

Something not covered here? Talk to us and a person will answer.

Does Tezeka sell or share tenant data?

No. Tenant and payment data is used to run the service for the landlord it belongs to. It is not sold or shared with third parties for other purposes.

Can an agent see a landlord’s other properties or billing?

No. Agent access is limited to assigned properties, and billing and plan controls do not appear in agent pages at all.

Is my tenant’s NRC number encrypted?

Yes. NRC and passport numbers are encrypted with AES256 before storage, and the encryption key is kept apart from the data.

What happens to payment screenshots after they are checked?

They are stored with their metadata, including GPS location, removed first, so the file cannot give away where it was taken.

How is admin access to Tezeka’s own systems protected?

Each admin browser has to be approved with a code sent by email, and every admin session needs a second factor as well as a password. A new approved device alerts every admin. Staff can only open your account with a one time code you give them, and the visit ends on its own.

What happens to my data if I cancel?

Retention follows Tezeka’s privacy policy. In general, records are not deleted outright on a downgrade or a pause. The privacy policy has the full detail.