Intermarché / Grupo Mosqueteiros
Lisbon, Portugal2 sources
Confirmed:Confirmed by the organisation, a regulator or a securities filing. First reported 2 Nov 2026.
Intermarché Grupo Mosqueteiros confirms incidents at seven Portuguese stores
The Mosqueteiros group confirmed incidents at seven Intermarché stores in Portugal. Initial findings pointed to an external refrigeration management service provider as the target of the attack.
- Type
- Cyberattack
- Sector
- Food
- First reported
- 2 Nov 2026
- Latest source
- 2 Nov 2026
What to do
- Follow updates from the organisation itself rather than social media.
- If you have an account, change that password, and anywhere you reused it.
- Turn on two-factor authentication, ideally an authenticator app or passkey, not SMS.
- Expect phishing that uses your real details. Do not click links in messages about this incident; go to the company's site directly.
- If they are a supplier, ask for an incident summary and the indicators of compromise.
- Patch internet-facing systems first, especially VPNs, firewalls and file transfer software.
Not sure? Ask an assistant with the sources attached, or have a coding agent check your systems.
Check your systems for Intermarché / Grupo Mosqueteiros
Sources
2- konbriefing.com2 Nov 2026konbriefing.com/en-topics/cyber-attacks.html
- fr.euronews.com2 Nov 2026fr.euronews.com/2026/11/03/cyberattaque-contre-frigos-de-supermarches-dans-neuf-pays-europeens
Confidence 80% that this is real and correctly placed. Locations are city centroids at best. Spotted an error? Report a correction.