Duck posted a concept flash drive which looks much like old-school bike locks. The USB flash drive has a stainless steel chassis with combination lock and wire strap. Knowing the combination will unlock the secrets stored on the flash drive. Oh, but of course encryption software is also included for that 2nd layer of security. The dual factor authentication design reminds GetUSB.info of the IDVault and SanDisk’s TrustedSignins drive. Duck didn’t post purchase info or pricing so not sure if this is to market, stick with the IDVault for now.