https://www.bleepingcomputer.com/news/security/dev-backdoors-own-malware-to-steal-data-from-other-hackers/

Cybercriminals using Prynt Stealer to collect data from victims are being swindled by the malware developer, who also receives a copy of the info over Telegram messaging service.

The malware developer has planted in the builder for the infostealer a backdoor that is present in every resulting copy that is being rented to cybercriminals for prices between $100 per month or $700 per year to $900 for a lifetime subscription.