Thousands of ASOS customers have been sent a phone alert saying the retailer has been hacked.
Customers received a mobile app notification on Tuesday, titled “ASOS hacked”, which directed them to a Telegram account.
The message read: “Dear ASOS DPO and IT, we have full compromised the Snowflake instance. Engage with us, or we will leak it,” followed by the Telegram link.
Anyone else get the ASOS hacked notification? Any ideas? https://t.co/WZkWta5dek
— Matt Salisbury (@mattrsalisbury) October 6, 2026
Shares in the company tumbled by more than 10% on Tuesday morning as a result.
The company has been contacted for comment.
It comes after a raft of UK retailers were targeted by cyber attackers over the past two years, including Marks & Spencer and Harrods.
Marks & Spencer paused orders through its website and app in April 2025 following a cyber attack.
The retailer later confirmed that personal customer data had been taken, potentially including contact details, dates of birth and online order histories, but said usable payment details and account passwords were not affected.
Meanwhile, Harrods restricted internet access across its sites as a precaution in May 2025 after attempts to gain unauthorised access to its systems.
In a separate incident in September, data relating to 430,000 customer records was stolen from a third-party provider. Harrods said the affected information did not include passwords or payment details.