In approximately December 2018, the digital mall Wanelo suffered a data breach. The data was later placed up for sale on a dark web marketplace along with a collection of other data breaches in April 2019. A total of 23 million unique email addresses were included in the breach alongside passwords stored as either MD5 of bcrypt hashes. The data was provided to HIBP by a source who requested it be attributed to “JimScott.Sec@protonmail.com”.

Source