ASOS customers got an ominous notification this morning. Here's what the retailer is telling users.

Some ASOS shoppers opened their phones Tuesday dawn to discover a troubling notification declaring "ASOS HACKED."

"Dear ASOS DPO and IT, we have completely compromised the Snowflake instance," a notification from the fast-fashion retailer said, according to multiple screenshots posted to social media. "Engage alongside us, or we volition leak it."

The notification, which arrived on phones at about 10 a.m. in London, ASOS confirmed to Business Insider, included a nexus to a Telegram chat.

"We are examining unauthorised action involving third-party platforms that we use to communicate alongside customers," ASOS stated in a statement. "We took contiguous act to restrict admission to the notification platforms and are operating alongside our inner and external expert advisers, as fine as all applicable authorities."

The business stated essential individual data of ASOS shoppers, including names and communication details, may have been accessed. The retailer stated that it does not accept payment-card data or document passwords were affected.

Snowflake, the cloud-data company named in the message, stated it had started an inquiry following learning of the notification. "At this time, we can study that we have established no colony of the Snowflake platform," a business spokesman said.

ASOS stated its website and app were functioning normally in the meantime.

The Tuesday event appears to be the latest in a cord of cybersecurity attacks on UK-based companies. Last year, automaker Jaguar-Land Rover close downward manufacturing for five weeks following a ransomware attack, during retailer Marks & Spencer had to close downward its online shop following a hack.