While using indexOf to locate a password substring is not inherently malicious, the presence of "indexofpassword" patterns in production code often indicates deeper security issues. Here’s why.
Older web applications used JavaScript indexOf to check if a password field contained certain characters or patterns before submission. indexofpassword
You might wonder: Who would leave a file named "passwords.txt" in a web-accessible folder? The answer is surprisingly common: While using indexOf to locate a password substring