‘I deleted all my card information, changed my password and address’published at 16:06 BST
16:06 BST
Imogen James
Live reporter
I’ve been speaking to Lucy from Cumbria, who says “it was quite startling” to receive the notification.
The 21-year-old says she was concerned about “something being compromised” so went onto X to see if other people had received it.
“I saw a lot of posts about it, with quite a few saying about deleting personal information, so I went on to the app (which was working as normal) to change my details.
“I deleted all my card information, changed my password and address,” she says.
Lucy also messaged her sister, telling her to do the same as she is a frequent Asos user.
“Interestingly, my sister hasn’t got the notification so I told her not to click on any notifications she gets from Asos for the time being,” she told me. Lucy says her sister also lives in the UK.
When I asked her if she is now put off by using the app in the future, Lucy says: “I definitely won’t be using it until they know what exactly has been compromised.
“It will definitely make me more cautious and more likely to buy directly from the retailers that they stock instead.”