The supermarket has emailed all Clubcard holders to explain how customers can recognise its official branded emails and tell them apart from scam emails.
In it, Tesco says: “The Tesco Clubcard team send out frequent emails to our customers and wanted to make sure you feel comfortable you recognise what is from us, and what could be fraudulent activity.”
It highlights the two kinds of official emails, marketing and service, Clubcard holders can expect to receive from Tesco and reminds customers that Tesco will never ask for personal or security information by email.
Customers are directed to an online guide offering tips on how to recognise genuine Tesco emails and identify scam phishing emails.
Tesco is said to have asked police to investigate claims that tens of cardholders could have had loyalty vouchers stolen.
It comes as Tesco fights to restore trust after it found to be selling products containing horsemeat, launching press ads and updating customers on changes to its procedures via its blog.
Rivals The Co-operative and Sainsbury’s have today (22 February) moved to reassure shoppers they are taking steps to resolve the horse meat issue. Asda CEO Andy Clarke said yesterday he was “shocked” by the horse meat issue and revealed Asda could run reassurance ads.