Grena Ltd.

Important security alert


Recently the activity of cybercriminals has been more visible by trying to fraud customers on various websites. Therefore, we would like to ask you to be especially wary when completing a payment.

A usual activity of cybercriminals is attaching a file that imitates an invoice or asking for a payment with the bank connection and account number being changed to the criminals’ bank account.

To prevent being a victim of a cybercrime we would like to remind you about the following information and procedures at Grena Ltd.:


Grena Ltd. has a bank account solely in the HSBC Bank in the United Kingdom


Every e-mail you receive from us should be secured with a digital signature. The icon indicating a digitally signed e-mail shows a closed envelope with a seal or a red ribbon. The icon may be different in your mailing programme.


Payment documents are being sent as a .pdf file and contain a digital signature that you can verify the person authorisied to sign it.


We suggest you check and confirm every invoice you receive from us before paying by calling our office in Nottingham using the phone numbers provided on our website.

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London Office

1000 Great West Road, Brentford, London
United Kingdom

Phone: +44 208 263 5511
Fax: +44 208 263 5510

Nottingham Office

Chelsea House, Chelsea Street, Nottingham, Nottinghamshire
United Kingdom

Phone: +44 115 9704 800
Fax: +44 131 777 80 77

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