Secure Password Checking via K-Anonymity
With LeakCheck, you can bulk-verify credentials securely. Utilizing the advanced k-anonymity method, the software never transmits your plain-text passwords. Instead, it sends anonymized hash fragments to the Have I Been Pwned API, matching your data against millions of known breaches without compromising your privacy.
The problem with this is there exists out there in the world rainbow HASH cracking programs that produce databases to reverse common hashes back to possible plain texts so using a HASH of passwords to Have I been Pwned API is assuming Have I been Pwned is and alwyas will be above reproach! And why use THIS User interface to use Have I been Pwned when you can use the service direct for free and skip the middle man additional layer of insecurity!