https://www.bleepingcomputer.com/news/security/september-was-a-record-month-for-ransomware-attacks-in-2023/

Ransomware activity in September reached unprecedented levels following a relative lull in August that was still way above regular standards for summer months.

According to NCC Group data, ransomware groups launched 514 attacks in September. This surpasses March 2023 activity, which counted 459 attacks, and was heavily skewed by Clop's MOVEit Transfer data theft attacks.