KseandI enhanced password input security in the JetBrains/Avalonia repository by developing a feature that prevents key modifiers from altering word-based editing within password fields. Using C# and leveraging skills in security, UI development, and unit testing, KseandI implemented input handling logic that ensures password text boxes do not leak information through unintended text manipulation. The solution included comprehensive tests to cover critical security edge cases and maintained stability for non-password fields, ensuring no regressions in existing input behavior. The work demonstrated careful attention to privacy and traceability, with all changes clearly documented and validated through commit-based tracking and automated tests.