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Monoprix
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OrganisationFR

Monoprix

French city-centre supermarket chain owned by Groupe Casino.

Founded as Noma in Rouen in 1932, Monoprix is a French city-centre retailer selling groceries, fashion, beauty and home goods.

Last refreshed: 22 October 2026 · Appears in 1 active topic

Key Question

Can Monoprix secure remote refrigeration without replacing unsupported controllers?

Timeline for Monoprix

#15 12 Oct

Lost chilled stock in about 30 shops

Cybersecurity: Threats and Defences: Fridge hack spoils food across Europe
View full timeline →

Background

Monoprix is a French city-centre retailer founded as Noma in Rouen in 1932 and renamed later that year. It sells groceries and fresh food alongside beauty, fashion, home, decoration and leisure products. Customers can buy through several shop formats and online.

The chain has operated as a subsidiary of the same French retail group since 2013. Its parent now trades as Plesio, having previously used the Groupe Casino name. Monoprix's mixed range distinguishes it from a food-only supermarket: one urban shop can combine everyday groceries with clothing, household goods and personal-care products. Its city-centre position and broad catalogue define the business more clearly than any single store incident.

Common Questions
Who owns Monoprix?
Monoprix has been a subsidiary of the French retail group formerly called Groupe Casino, now Plesio, since 2013.Source: Monoprix
What does Monoprix sell?
Monoprix sells groceries and fresh food alongside beauty, fashion, home, decoration and leisure products for urban customers.Source: Monoprix
How many Monoprix shops were hit by the fridge attack?
Groupe Casino said about five per cent of Monoprix shops, roughly 30 locations, were affected in October 2026.Source: Groupe Casino
What did Monoprix do with affected chilled food?
The group said any product whose storage conditions were no longer guaranteed was withdrawn from sale.Source: Groupe Casino
Source Material

Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Updated 22 October 2026. Editorial standards.