24th February 2021

Protecting your company from unauthorised Companies House filings

Company Security- back to basics.

File Companies House applications online

Companies House online filing service is the safest way to send statutory information. To use the service, you’ll need a security code and an authentication code.

Join Companies’ House PROOF scheme

To protect your company from unauthorised filings, sign up to our protected online filing (PROOF) scheme.

If a company signs up to PROOF, Companies House will only accept electronically filed versions of the following applications unless authorised by an officer of the company:

  • changes to your registered office address
  • changes to your officers (appointments, resignations or personal details)

Sign up to Follow your company

Follow is a free Companies House service. It lets you receive email alerts of company transactions. The alert tells you what’s been filed with us as soon as it’s been accepted.

The email will contain a link to the filing history of the company where you’ll be able to download a copy of the document for free.

If you’re a company director or auditor, the Follow service is a convenient way of keeping track of changes in company activity. You’ll then be alerted to any transactions on your company and will be able to address any problems quickly.

How to follow

To begin following companies:

  1. Sign in to Companies House using your email address and password.
  2. Search for a company to follow.
  3. Select the company.
  4. Click on ‘Follow this company’.

Be aware of scams

Companies House will never ask you to disclose your authentication code over the phone or email.

If you receive a suspicious email asking for personal details, such as authentication codes, you should forward it to phishing@companieshouse.gov.uk and then delete it.

Do not open any links or attachments within a suspicious email. If a link does not contain ‘.gov.uk’ within the address it’s not a Companies House page. It could be a scam.

The National Cyber Security Centre (NCSC) gives information on how to make sure your company is taking the necessary steps to protect itself from cybercrime. It has advice on how to keep your data and devices safe, for both small and medium sized companies as well as large organisations.