Simply typing the query into a search engine is not illegal. However, accessing, downloading, or attempting to use any credentials found in such files violates:
You may stumble upon an index of password.txt verified result while researching or browsing. Here is a protocol: index of passwordtxt verified
Searching for "index of password.txt verified" typically leads to results associated with , a technique used by security researchers (and attackers) to find sensitive files exposed on poorly configured web servers [14]. Simply typing the query into a search engine is not illegal