When running a scan with Bitdefender, some items might indeed be flagged as password protected. Password protected files belong, in most cases, to certain legitimate software. They are protected with a randomly generated password by their developers to avoid reverse engineering for malicious purposes.
This notification appears because Bitdefender is unable to unpack the contents of such items and scan them.
When the notification pops up, you can:
• Type the password in the corresponding field so that Bitdefender can scan it.
• Skip the object from that particular scan.
• Skip all password-protected items without scanning them.
NOTE: Regardless of this, should the contents of the password protected files be extracted, Bitdefender’s real-time protection would automatically scan them to keep your computer protected.