The search string intitle:"index of" secrets new is not standard syntax, but based on common patterns used with Google dorks or file indexing, a proper text would be:

In 2024-2025 alone, security researchers have documented thousands of exposed secrets via Google dorks, leading to data breaches affecting millions of users.

: Lists or files related to books titled "Secrets," such as the novel by Jacqueline Wilson or historical documents like the Index Librorum Prohibitorum Intellectual Freedom Blog