Tesco PLC

Tesco PLC is a United Kingdom-headquartered multinational retailer that operates primarily as a supermarket chain. It offers a broad range of grocery and household products through physical stores and an online platform that includes a website and mobile app for home delivery and click‑and‑collect services. The company runs a loyalty programme called Clubcard, which had approximately nineteen million members at the time of a 2020 security notice. In addition to food retail, Tesco provides an online photo service that allows customers to upload, edit and order prints, cards and photo gifts. Its digital presence also extends to social media channels, where it maintains verified accounts to engage with customers and promote promotions. The retailer’s social media accounts have a substantial follower base, which was leveraged in a 2019 incident to spread a cryptocurrency scam.

Tesco’s organisational structure is that of a public limited company, indicated by the suffix PLC in its legal name. The business has faced several security incidents that highlight the scope of its digital services, including a 2024 credential‑impersonation breach that accessed personal data linked to retail transactions, a 2021 website and app outage suspected to stem from a cyberattack, a 2020 credential‑stuffing incident affecting Clubcard voucher redemption, a 2019 Twitter account compromise used to spread a cryptocurrency scam, and a 2015 disruption of its photo service tied to a third‑party vendor. These events demonstrate the retailer’s reliance on online transaction systems, loyalty programme infrastructure, and social media outreach, while also showing its response measures such as incident reporting, customer notifications and implementation of stronger security controls. Tesco continues to operate as a public limited company headquartered in the United Kingdom, providing grocery retail, loyalty benefits, online shopping and photo services to consumers across its markets.