No specific info about version 2.1. Please visit the main page of Padlock (OS X) on Mac Informer.
WD Security lets you set password protection and hardware encryption
ESET Cyber Security Pro represents a new approach to truly integrated computer security.
The program helps you remove the password of PDF files.
Web Confidential allows Web surfers to store URLs, user IDs, and passwords in one secure location.
Scans and gives you detailed information of any infection before removing it.