Alexander “Connor” Moucka was arrested this week by Canadian authorities for allegedly carrying out a series of hacks that targeted Snowflake’s cloud customers. His next stop may be a US jail.

Alexander 'Connor' Moucka allegedly hacked numerous customers of cloud storage provider Snowflake, including AT&T, Neiman Marcus, and possibly Ticketmaster.

The attacks affected millions of people’s data, and breached companies including the likes of AT&T, Santander, and Live Nation Entertainment (Ticketmaster). Ticketmaster alone reported the loss of 500 million people’s data, making this one of the biggest data breaches in history.

On October 30, Canadian authorities arrested Alexander Moucka, a.k.a. Connor Riley Moucka of Kitchener, Ontario, on a provisional arrest warrant from the United States. Bloomberg first reported Moucka’s alleged ties to the Snowflake hacks on Monday.

Canadian authorities have arrested a man on suspicion he breached hundreds of accounts belonging to users of cloud storage provider Snowflake and used that access to steal personal data belonging to millions of people,

Researchers from Mandiant, Google LLC’s cybersecurity services unit, found a dataset that had been stolen from an unnamed organization’s Snowflake environment. This organization subsequently hired Mandiant to investigate further,