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InvoClouds eFiling

Report a Security Issue

InvoClouds handles tax data — VAT returns, Corporation Tax filings, company officer details. We take that responsibility seriously, and we would much rather hear about a problem from you than find out about it the hard way.

If you think you have found a security vulnerability, or you believe you have experienced a security incident involving InvoClouds, please get in touch. You do not need to be a customer to report something.

How to reach us

Email security@invoclouds.com. We read everything that comes in.

To help us act quickly, please tell us:

Please do not send us real customer records, live credentials, or anyone's personal tax information as part of your report. A description and a screenshot with the sensitive parts removed is enough.

What happens next

What is in scope

These are ours, and we want to hear about them:

These fall outside what we can act on:

A few things we ask

We are not going to pursue anyone who reports a genuine issue in good faith. In return, please:

If personal data may have been exposed

Put DATA BREACH in your subject line so it gets prioritised. We assess every such report against our obligations under the UK GDPR, including the requirement to notify the Information Commissioner's Office within 72 hours where the incident meets the threshold for reporting.

If the issue affects HMRC or Companies House filings

Please say so explicitly in your report. Where an incident touches VAT (MTD), Corporation Tax or Companies House submissions made through InvoClouds, we notify HMRC through the Developer Hub within 72 hours, with a named contact and a direct telephone number, as required under HMRC's terms of use for MTD software.

Related pages

Last reviewed: 4 October 2026