Fraud monitoring · Xero, QuickBooks & MYOB

Fraud leaves a trail.
We detect it, flag it and record it.

Sentinel connects read-only to your ledger and checks every bill, payment, journal and payslip against 150+ explainable rule checks. It records what changed, who changed it and when.

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No credit card required · read-only connection, nothing in your ledger is changed.

Practice Dashboard — risk across every client you manage, in one view.
Risk Summary — current counts, trends, and anomaly breakdown at a glance.
Documents — every journal entry, invoice, bill, and bank transaction scored and filterable by risk.
Document Detail — one blended risk score, ranked against similar records.
What Sets It Apart — the exact factors and rules behind every flag.

SOC 2 Type II in progress, targeting Q3 2027. How we protect your data

Why Sentinel

An independent check on the books, whoever keeps them.

Sentinel sits outside your accounting system and outside the control of the person doing the bookkeeping. It reads, scores and keeps its own record.

Insider and payroll fraud

Flags payments to an employee outside payroll, vendors whose bank account or address matches a staff member, terminated employees still being paid, and employees sharing one bank account.

Invoice redirection

Flags a vendor’s bank details changing, and any bill or payment within 7 days of the change. Vendor names are checked against the ABR, Companies House and NZBN registries.

A record of every change

Old value, new value, who and when, on every synced document. For Xero, entries edited after a period was locked are flagged with their effect on retained earnings.

Every flag explained

Detection runs on deterministic rules and statistical checks, each with a score and a plain-English reason. Optional machine learning adds a second opinion and never replaces the rules.

Fraud casebook

Sixteen real Australian cases, mapped to the checks that respond.

Read all sixteen cases

Payroll · Insider

~$737,000

Hassell Services

A payroll manager kept departed employees’ records alive and redirected their pay across 241 transactions.

Primary check: terminated employee still paid.

Bookkeeper · Insider

$190,000

Mount Garnet Transport

A bookkeeper made 185 unauthorised transfers to her own account over about two years.

Primary check: payment to employee outside payroll.

Invoice redirection · External

$191,859

Mobius Group v Inoteq

After a supplier’s email was compromised, “corrected” bank details were sent and the payment went to the wrong account.

Primary check: payment after vendor bank change.

Rule mappings describe what Sentinel is designed to detect from the pattern in each cited source. They are not a guarantee that a specific transaction would have been flagged.

What works where

Coverage by ledger, stated plainly.

Some checks depend on data only certain accounting systems expose. Here is what you get on each.

Check	Xero	QuickBooks Online	MYOB
Bills, invoices, payments, bank transactions	Yes	Yes	Yes
Manual journal checks	Yes	Yes	Yes
Field-level change record	Yes	Yes	Yes
Vendor registry check (ABR, Companies House, NZBN)	Yes	Yes	Yes
Vendor bank-detail change alerts	Yes	Yes	Yes
Bank-account holder name match	Yes	Not available	Yes, suppliers only
Payslip checks	Yes, with Xero Payroll	Not available	Yes
Ghost-employee check	Yes, with Xero Payroll	Not available	Yes
Edits after a locked period	Yes	Planned	Planned
Sync	Nightly, webhook, on demand	Nightly, webhook, on demand	Every 15 minutes, on demand

For accountants & bookkeepers

See risk across every client file on one dashboard.

Offer clients an independent fraud check, and have the record to show your own work is clean.

See practice pricing

Firm-wide dashboard

Risk mix, scored documents and last sync for each client.

Client switcher

Move between client files in a click.

One consolidated bill

Client files sit under the practice’s subscription.

Cases and reviews

Assignee, due date, comments and a full activity timeline.

How it works

From connection to first findings.

01 Connect

Xero, QuickBooks Online or MYOB, or upload CSV and GL export files.

02 Score

Every document runs against its rule set, each rule with a reason.

03 Alert

Email digests, in-app, Slack, Teams, PagerDuty and PDF reports.

04 Investigate

Drill into any document, compare it to its peers, open a case.

See what Sentinel finds in your own books.

A free, one-off scan of your last 12 months, with full findings, risk scores and explanations.

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