ASOS users received a message about the hack directly in the app. Stock prices plummeted.

Shares of British online retailer ASOS fell 13% during trading in London—the sharpest intraday decline in more than a year, since September 2025. At the time of publication, the stock had recovered some of its losses but remained down 10%.

The outage occurred after users of the company’s mobile app received a push notification about a breach of its systems, according to Bloomberg . “Dear Asos data protection officer and IT team, we have gained full access to Asos’s data in Snowflake. Contact us, or we’ll leak it,” read the message, which was widely shared on social media.

Shares of the cloud service Snowflake fell 3.2% in premarket trading in New York, after which they halved their losses.

An ASOS spokesperson was unable to provide a prompt comment to the news agency, and Snowflake did not respond to the request.

This isn't the first time the Snowflake platform has been hacked: in 2024, hackers used compromised accounts on the service to gain access to data from 165 companies, including AT&T, Ticketmaster, and Advanced Auto Parts. AT&T reported at the time that records of phone calls and text messages from nearly all of its users over a six-month period had been leaked.

The number of attacks is rising due to the proliferation of AI-based tools and the activities of cybercriminal groups, Bloomberg notes. Several British companies have recently fallen victim to such attacks. For example, Marks & Spencer spent several months last year dealing with the aftermath of a hack that forced it to suspend online sales of clothing and home goods. Around the same time, hackers breached the Co-op retail chain and Harrods department store. Car manufacturer Jaguar Land Rover was hit by a major cyberattack last year, forcing it to shut down plants around the world.

This article was AI-translated and verified by a human editor