Security & data protection

Security built into your books, not added on

Your accounts hold your company's most sensitive numbers. Zaccount keeps them in Singapore, separate from every other company's, open only to the people you choose — and records every change in a trail no one can edit.

The questions finance teams ask us

“Where is our data, and who else can see it?”
“Can staff see figures they shouldn’t — salaries, other departments, other companies?”
“If an entry changes, can we prove who changed it and what it was before?”
“Can someone change last year’s books after they’re closed?”
“Can we really let AI into our accounts?”

Here's how Zaccount answers each one.

Your data stays in Singapore

Stored in Singapore. Your books, files and sign-in data are held in Singapore, and the app runs from Singapore.
Each company kept separate. Every company’s books live in their own separate section of the database — never mixed with another company’s, even within your own group.
Encrypted in transit (HTTPS only) and at rest.
Backed up daily.
No public data interface. The database’s public API is switched off.

The right people, and only them

Roles per action. For every area — sales, purchases, banking, inventory, projects, payroll — you decide who can view, create, confirm or void.
Payroll stays private. Only people you name can see payroll and salaries.
Narrower still where you need it. A contract manager can see only their own contracts; a technician only the service jobs assigned to them, with no fees or billing.
Everyone has their own login. Unlimited users on every plan, so no one shares a password — and every action is tied to a person.
Invitation only. No one can sign up on their own; people join only when you invite them, and lose access the moment you remove them.
Two-step verification. Turn on a code from an authenticator app for your own login — or require it of everyone in your company.
Signed out when idle. After 15 minutes with no activity, and sign-in ends when the browser closes.

An audit trail no one can edit

Every change to your invoices, bills, journals, payments, contacts, items, accounts, settings, users and roles is recorded — who, when, and the old and new values.

Recorded by the database itself, so nothing gets past it — not an import, not a bulk change, not Zac.
Can’t be edited or deleted — the database refuses any change to it.
Can’t be switched off. You choose who may view it; you can’t choose to stop it.

Books that stay closed

Lock date. Once a period is closed, nothing dated before the lock date can be posted or changed.
No gaps in your numbering. Invoice and document numbers are given only when a document is confirmed — abandoned drafts never leave a gap for your auditor to question.
Drafts first. Documents reach your accounts only when someone with the right role confirms them.

Zac, kept in check

Meet Zac, your AI Accountant — and the limits he works within:

Drafts only. Zac has no way to post, pay, approve or void. That’s how he’s built, not a setting someone could change.
No access to your setup. He can’t change settings, the chart of accounts, users or permissions.
Only what you may see. Zac sees only what the signed-in user is allowed to see — and never payroll or salaries.
On the record. Everything Zac does is recorded in the audit trail.
Not trained on your data. Zac is powered by Anthropic’s Claude. The records he needs are processed by Anthropic in the United States and are not used to train AI models.

Your files, private

Receipts, contracts and statements attached to your records are stored privately and open only to signed-in people allowed to see that part of your books. Each person’s ZacFile folders are theirs alone unless they share them.

If you ever leave

Your data is yours. Within 60 days of the end of your subscription we provide a full export, and you can keep an optional read-only archive to view your books for as long as you need.

Frequently asked questions

Where is our data stored?

In Singapore — your books, files and sign-in data — and backed up daily.

Can staff in one company see another company’s books?

No. Each company’s books are kept separate, and access is given company by company.

Can anyone change the audit trail?

No. It’s written by the database itself, which refuses any edit or deletion, and it can’t be switched off.

Is our data used to train AI?

No. Zac is powered by Anthropic’s Claude, and under Anthropic’s commercial terms your data is not used to train AI models.