Asos customers receive ‘hack’ notification threatening to leak data

Push message claims fashion company’s data has been ‘fully compromised’, but website and app remain online

Asos is investigating after users of its mobile app received a notification claiming hackers had “fully compromised” the online fashion retailer’s data.

The website and app appeared to be continuing to operate on Tuesday morning and it is understood that Asos is still investigating whether any hack has taken place.

Snowflake is a cloud platform used to store, process and analyse data including transactions and demographic information such as clothing sizes and body measurements. It also enables push notifications to clients’ phones.

Dray Agha, the senior manager of security operations at Huntress, an online security firm, said: “Snowflake is a massive cloud database where retailers typically store sensitive customer information – it is a real worry if cyber criminals have indeed accessed it as they claim. The push notification suggests attackers have breached the systems controlling the Asos mobile app also..”

“It’s not unusual to see new groups emerge, and often they wait until they have what they see as a significant opportunity before they announce themselves so as to enter the ecosystem with ‘credibility’, ” said Aiden Sinnot, the principal threat researcher at the cybersecurity firm Sophos.

Marijus Briedis, the chief technology officer at the online service provider NordVPN, said: “What customers should be particularly alert to now is what happens next. High-profile cyber incidents create ideal conditions for phishing attacks. Criminals may exploit the publicity by sending emails and texts claiming to be from Asos, perhaps asking customers to reset a password, confirm payment details, check an order or claim a refund.”

Asos turns to AI stylists to win back shoppers after sales slide 12%21 Nov 2025

Iran-linked hackers blamed for cyber-attack that shut down UK power plant

‘Keys to the kingdom’: hackers who gained access to heart of London transport network jailed16 Jul 2026

Fast fashion’s quick decline: Asos and Boohoo have that post-Covid feeling

Bank of England handed powers to regulate key tech firms including Amazon and Google10 Jul 2026