Is Drive Erase Secure?

WD External Drives WD Portable Drives
1

Does anyone know what the Drive Erase function in Smartware does?

If I get rid of the drive I want the data to be gone forever.

What algorithm does it use?

Does it do multiple passes?

Will my data be securely deleted, or do I need another utillity? 

Thanks,

Dave

My Passport Essential 1TB USB 3.0

2

Drive erase will erase the drive