Mycelium has announced that their frauduct known as Entropy will begin shipping out to customers as of this coming Monday. Mycelium's Entropy, which was Indiegogo'd to the tune of $31,271 back in June through August last year, was originally slated to ship in October of 2014 but was delayed due to manufacturing issues as well as a decision to change the design of the case.

Sold under the pretence of being the safest way to generate a paper wallet, pre-orders for the first batch of units quickly sold out. The Indiegogo page for Entropy describes the unit as:

..a small USB device with a single purpose: Making it easy to create Bitcoin paper wallets in a secure controlled environment.

Paper wallets are created in 3 simple steps:

Insert Mycelium Entropy into a printer that allows you to print pictures from a USB flash drive.
Select the print option on the printer.
There is no step 3.

This way the paper wallet has never touched a computer or a network, and as soon as you eject the device the private key is wiped from memory.

Mycelium Entropy is the easiest and most secure way of creating a paper wallet for offline cold storage.

Putting to one side criticism of the device by people who know better, it's common knowledge that modern printers are capable of saving a copy of the print jobs made by its users, rendering the promise by Mycelium that the private key Entropy generates will be wiped from memory a worthless one. Also, modern printers often ship with bluetooth and/or wireless connectivity and can often be found connected to the Internet with or without the owner's knowledge and/or consent.

These two things are of particular concern because Entropy is aimed at new users¹ who are more than likely to be unaware of the problems their printer poses to the security of their private keys, even should they ensure the destruction of the printer.

A second batch of devices is expected to begin shipping later this year in April.

1. Muh mass adoption! ↩